Climate and monthly weather forecastLancaster, NH
Climate and monthly weather forecast
The climate of Lancaster
Lancaster, New Hampshire, falls under the classification of a Dfb climate according to the Köppen system, indicating a Humid Continental climate with no dry season and a warm summer. Geographically, this town is located in the northeastern United States where temperatures can range from an average high of 75.6°F (24.2°C) in the summer months to an average low of 9°F (-12.8°C) during winter.As a general rule, Lancaster experiences relative humidity between 76% to 90%, with the highest values occurring during the colder months and the driest times occurring during summer. Visibility stands consistent at 4-5 miles throughout the year. Lancaster's wind speeds also remain relatively steady, ranging from 4.7mph (7.6km/h) to 6.6mph (10.6km/h), with maximum wind gusts of up to 9.9mph (15.9km/h).
In terms of rainfall, the amounts fluctuate slightly throughout the year, from a minimum of 1.97" (50mm) to a maximum of 2.95" (75mm), spread over 5 to 17.4 days in a month. Meanwhile, snowfall is significantly prevalent during winter, with as much 13.43" (341mm) in a month, leading to a substantial number of snowfall days. Daylight hours vary between a low 8.9 hours in winter to a high of 15.5 hours in summer, with corresponding sunshine hours varying from 2.6 hours to 9.5 hours. The UV index reaches its peak during summer, marking the increased intensity of the sun's radiation.
The best time to visit Lancaster
The optimum time to visit Lancaster, New Hampshire, is typically during the late spring and early summer months, approximately from May to June. Throughout these months, the weather tends to be mild and pleasant. The average temperatures range from a high of 62.2°F (16.8°C) to 69.1°F (20.6°C) and lows between 41.2°F (5.1°C) to 47.5°F (8.6°C).In addition, Lancaster experiences moderate relative humidity, making the conditions comfortable rather than oppressive. These months also get a good amount of sunshine, with an average of 7.7 to 8.2 hours per day, signaling longer daylight hours. The rainfall is relatively low during this period with an average of 2.24" (57mm) to 2.68" (68mm) respectively.
The worst time to visit Lancaster
The most challenging time to visit Lancaster likely falls during the winter months, particularly in January and February. Temperatures during this period can plunge to an average low of 9°F (-12.8°C) and 9.9°F (-12.3°C) respectively, and reach only up to an average high of 22.5°F (-5.3°C) and 25.2°F (-3.8°C).Moreover, this period also sees an increase in snowfall with an average of 13.23" (336mm) in January and 13.43" (341mm) in February, over 21 snowfall days each month. Similarly, daylight hours are at their shortest, with an average of 9.3 hours in January and 10.5 hours in February, effectively reducing the time for outdoor activities.
Spring weather in Lancaster
Spring in Lancaster lasts from March to May and is marked by a substantial warming trend. Average temperatures during this season range from a high of 33.3°F (0.7°C) to 62.2°F (16.8°C) and lows from 18°F (-7.8°C) to 41.2°F (5.1°C).Interestingly, rainfall averages around 2.05" (52mm) to 2.24" (57mm) over this period, occurring on about 9.8 to 16.5 days. The UV index begins to rise, indicating a trend towards longer and sunnier days. The daylight hours increase during this period, from 12 hours in March up to 14.8 hours by May.
Summer weather in Lancaster
Summer in Lancaster, extending from June to August, is characterized by warm and mostly clear weather. The average high temperatures during this season range between 69.1°F (20.6°C) to 75.6°F (24.2°C), while lows fall between 47.5°F (8.6°C) and 53.2°F (11.8°C).Rainfall during these months is moderate, averaging 2.68" (68mm) to 2.09" (53mm). There is a substantial increase in daylight hours, reaching up to 15.5 hours, hand in hand with an increased UV index, suggesting stronger solar radiation. Sunshine hours also reach a peak during this period, enhancing the overall pleasantness of this season in Lancaster.
Autumn weather in Lancaster
The autumn season, from September to November, in Lancaster witnesses a gradual decrease in average temperatures, from a high of 66.6°F (19.2°C) to 38.8°F (3.8°C), and lows from 45.7°F (7.6°C) to 27°F (-2.8°C). Rainfall averages around 2.05" (52mm) to 2.24" (57mm), contributing to a relatively wet season.The daylight hours reduce during this period, along with a decrease in the UV index and sunshine hours, indicating the onset and progression of colder, shorter days marking the approach of winter.
Winter weather in Lancaster
Lancaster endures a cold winter season from December through February. During this period, the average high temperatures range from 22.5°F (-5.3°C) to 27.7°F (-2.4°C), with lows dropping between 9°F (-12.8°C) to 17.2°F (-8.2°C). Snowfall is a significant characteristic of Lancaster winters, with the town receiving an average of 9.53" (242mm) to 13.43" (341mm) of snow.Lancaster witnesses its shortest daylight period in the year, along with reduced hours of sunshine. Winds remain relatively steady, despite the colder temperatures, making for a chilly winter. Rainfall is also observed during this period with an average of 2.48" (63mm) in December.
Weather in January
January brings the coldest weather to Lancaster, New Hampshire with the lowest average temperatures of the year. With the thermometer fluctuating between 9°F (-12.8°C) and 22.5°F (-5.3°C), residents bundle up in their warmest clothes. Weather in January »Weather in February
As winter persists in Lancaster, the weather in February sees minor variations compared to January. This month is characterized by cold temperatures and frequent snowfall. The average snowfall inches slightly upwards to 13.43" (341mm). Weather in February »Weather in March
March signals the onset of spring, bringing a noticeable change in the weather pattern. The month sees a marked increase in temperatures, making it noticeably warmer than February. Snowfall significantly diminishes to an average of 9.49" (241mm). Weather in March »Weather in April
April in Lancaster is a month of considerable changes. As winter ebbs away, the landscape dusts off its snowy mantle with a significant reduction in average temperatures to 6.61" (168mm). This month's weather is marked by rising temperatures, with low averages accelerating from 18°F (-7.8°C) in March to 29.7°F (-1.3°C) in April. Weather in April »Weather in May
May brings warm and pleasant weather to Lancaster, shedding the remnants of winter. A significant increase in high average temperatures is characteristic of this month, providing ample opportunity for outdoor activities and leisure. Weather in May »Weather in June
June in Lancaster heralds the arrival of summer with its consistently high temperatures. This warm trend is a distinct shift from the conditions in May. The average temperature hits a high of 69.1°F (20.6°C), signalling the onset of the summer heat. Weather in June »Weather in July
July signifies the heart of summer in Lancaster. It is characterized by the highest average temperatures of the year, reaching a peak at 75.6°F (24.2°C). With the heat comes the highest UV Index of the year at 5, which warrants precautions for outdoor activities. Weather in July »Weather in August
In August, Lancaster's weather remains warm but begins to subtly cool down from July's peak. There is a minor dip in average high temperatures, signaling the upcoming change of the season. Nighttime sees its own subtle changes, with the low temperature mildly decreasing to 51.4°F (10.8°C). Weather in August »Weather in September
September signals the transition from summer to autumn in Lancaster. A subtle drop in average high temperatures to 66.6°F (19.2°C) indicate the approach of fall. This month experiences a similar amount of rainfall, with an average of 2.05" (52mm), maintaining consistent moisture levels. Weather in September »Weather in October
October ushers in the full swing of fall in Lancaster. The weather shifts significantly compared to September, with average temperatures dipping noticeably. Despite rainfall peaking at 2.95" (75mm), it does not hinder the enjoyment of autumnal activities. Weather in October »Weather in November
November in Lancaster signifies the arrival of winter. The month presents a stark contrast to the weather conditions experienced in October, with a considerable drop in temperatures. With the advent of winter, the average snowfall amounts to 6.42" (163mm). Weather in November »Weather in December
December brings deep winter conditions to Lancaster. As the coldest month after January, it observes an average high temperature of 27.7°F (-2.4°C) and snowfall of 9.53" (242mm). The weather conditions are typical for winter, with low temperatures and increased snowfall. Weather in December »Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, with an average high of 22.5°F (-5.3°C) and a low of 9°F (-12.8°C), signifies the coldest month of the year.
With an average relative humidity of 90%, January is the most humid month.
In Lancaster, during the entire year, the rain falls for 150.5 days and collects up to 27.99" (711mm) of precipitation.
Months with snowfall are January through May, October through December.
Throughout the year, there are 104.2 snowfall days, and 61.02" (1550mm) of snow is accumulated.
The months with the least sunshine are January and February, with an average of 2.6h of sunshine.
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 21 days and typically aggregates up to 13.43" (341mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The least humid month is May, with an average relative humidity of 76%.
In Lancaster, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 30min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index in Lancaster.
In Lancaster, the peak temperatures are generally noted in July, averaging a high of 75.6°F (24.2°C) and a low of 53.2°F (11.8°C).
The month with the least rainfall in Lancaster is August, when the rain falls for 15.7 days and typically collects 1.97" (50mm) of precipitation.
With an average of 9.5h of sunshine, August has the most sunshine of the year.
October is the month with the most rainfall. Rain falls for 15.6 days and accumulates 2.95" (75mm) of precipitation.
With an average of 8h and 54min of daylight, December has the shortest days of the year.
Average temperature
Lancaster, NH
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (22.5°F).
The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure
Lancaster, NH
- Average pressure in January:
30"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Lancaster, NH
- Average wind speed in January:
6.1mph - Average wind speed in February:
6.2mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.6mph - Average wind speed in May:
6mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Lancaster, NH
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (76%).
Average rainfall
Lancaster, NH
- Average rainfall in January:
2.36" - Average rainfall in February:
2.05" - Average rainfall in March:
2.05" - Average rainfall in April:
2.83" - Average rainfall in May:
2.24" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.97" - Average rainfall in September:
2.05" - Average rainfall in October:
2.95" - Average rainfall in November:
2.24" - Average rainfall in December:
2.48"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is August (1.97").
Average rainfall days
Lancaster, NH
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
5 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
15.6 days - Average rainfall days in November:
11 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (5 days).
Average snowfall
Lancaster, NH
- Average snowfall in January:
13.23" - Average snowfall in February:
13.43" - Average snowfall in March:
9.49" - Average snowfall in April:
6.61" - Average snowfall in May:
0.79" - Average snowfall in June:
0"
The month with the highest snowfall is February (13.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Lancaster, NH
- Average snowfall days in January:
21.4 days - Average snowfall days in February:
21 days - Average snowfall days in March:
18.2 days - Average snowfall days in April:
9.2 days - Average snowfall days in May:
0.8 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
2.8 days - Average snowfall days in November:
10.8 days - Average snowfall days in December:
20 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Lancaster, NH
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
2h and 36min - Average sunshine in February:
2h and 36min - Average sunshine in March:
3h and 54min - Average sunshine in April:
6h and 0min - Average sunshine in May:
7h and 42min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
9h and 30min - Average sunshine in September:
7h and 54min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 6min - Average sunshine in December:
3h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days
Lancaster, NH
- Average sunshine days in January:
8.2 days - Average sunshine days in February:
6.3 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
9.2 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
11.5 days - Average sunshine days in November:
11.1 days - Average sunshine days in December:
8 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (6.3 days).
Average UV index
Lancaster, NH
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Lancaster, NH
The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility
Lancaster, NH
The months with the highest visibility are May, June, July and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October and December (4mi).
