Climate and monthly weather forecastKeene, NH
Climate and monthly weather forecast
The climate of Keene
Keene, New Hampshire, adheres to the Köppen climate classification of Dfb, typifying the humid continental climate with no dry season and warm summers. This northeastern US city experiences dynamic seasonal transitions throughout the year, capturing the essence of each climate period distinctly.Spanning the range from warm to cold, temperatures swing from a high of 79.9°F (26.6°C) in July to a chilling low of 15.1°F (-9.4°C) in January. This annual temperature variation sets the stage for the climatic changes that Keene undergoes each year. Relative humidity remains fairly constant, ranging from 74% in April to a peak of 85% in February, contributing to the formation of varied weather throughout the year.
From torrential downpours to winter snow, Keene sees it all. Rainfall is slightly heavier in the summer months with a maximum of 1.3" (33mm) in July, and a lower limit of 0.75" (19mm) in March. Snowfall isn’t unheard of, with January and February receiving 2.64" (67mm) and 2.44" (62mm), respectively. As for sunshine, the longest sunlit days can be enjoyed from June to August, with daylight hours peaking at 15.3h in June.
The best time to visit Keene
Owing to the distinctive climate, the best time to visit Keene largely depends on the desired activities. Summertime, specifically from June to August, offers the most comfortable conditions for outdoor activities. With temperatures peaking at 78.1°F (25.6°C) to 79.9°F (26.6°C), and sunshine durations extending up to 10.3h, visitors can fully enjoy the city's green parks and outdoor attractions.The worst time to visit Keene
The most challenging time to visit Keene would be between December and February, given the harsh winter conditions. During these months, Keene braves low temperatures from 15.1°F (-9.4°C) to 22.8°F (-5.1°C), underscored by substantial snowfall amounts of up to 2.64" (67mm) in January. These conditions can render travel tricky and outdoor activities less engaging.Spring weather in Keene
Between March and May, Keene’s spring months provide a gradual warm-up from the long winter. Monthly averages for high temperatures start at 39.4°F (4.1°C) in March and end at 66°F (18.9°C) in May, while humidity remains relatively constant, ranging from 74% to 75%. The period also brings increased rainfall, with precipitation rising from 0.75" (19mm) in March to 1.14" (29mm) in May.Summer weather in Keene
Summer descends on Keene from June through August, making for the warmest time of the year. Highs from 70°F (21.1°C) to 79.9°F (26.6°C) embrace the city, while humidity levels climb slightly, ranging within 75% to 77%. As the city basks in prolonged sunshine of up to 15.3h per day, rainfall also increases with July experiencing the year's peak at 1.3" (33mm).Autumn weather in Keene
Autumn in Keene, throughout September to November, is characterized by cooler temperatures and fallen leaves. Monthly average temperatures reduce swiftly from 70°F (21.1°C) in September to 44.4°F (6.9°C) in November. Humidity remains relatively high around 79% to 80%, while rainfall declines from 1.18" (30mm) in September to 0.94" (24mm) in November. Minimal snowfall makes a return in November with an average of 1.02" (26mm).Winter weather in Keene
Winter in Keene starts in December and lasts through February. The season brings the coldest period with temperatures plummeting to lows from 15.1°F (-9.4°C) to 22.8°F (-5.1°C). Snowfall reaches its prime with a maximum measure of 2.64" (67mm) in January. Meanwhile, humidity levels escalate to around 82% to 85%, creating a chilly moisture-rich air, and daylight hours contract to as short as 9.1h in December.Weather in January
The starting phase of the year in Keene, New Hampshire, is generously replenished with a combination of persistent low temperatures and frequent snowfall. Between the months of December and January, a slight escalation in temperature comes to play, though this increase is barely significant, registering a high temperature of 27.9°F (-2.3°C) and a low of 15.1°F (-9.4°C). Weather in January »Weather in February
As the calendar turns to February, the winter climate persists, with temperatures moderately rising from their January levels, yielding a maximum temperature reading of 31.1°F (-0.5°C). The month of February is noted for an increased daylight duration compared to January, inviting slightly more sun into the bitterly cold days. Weather in February »Weather in March
March in Keene brings a welcome warming trend while keeping the winter spirit slightly alive. When comparing to February, a notable rise in both the maximum and minimum temperature is observed, with peaks reaching up to 39.4°F (4.1°C). Weather in March »Weather in April
In April, Keene leaves behind the winter chill, stepping solidly into spring territory. The transition from March to April brings remarkably higher temperatures, the warmth reaching a notable high of 52.9°F (11.6°C). Keene's April weather experiences lesser cloud coverage with prolonged daylight hours, indicating more room for the sun to play its role. Weather in April »Weather in May
May ushers Keene into consistent spring weather, characterized by reasonably warm temperatures and more dependable solar exposure. With temperatures climbing from the previous month, the city encounters pleasant weather, allowing for various outdoor activities to flourish. Weather in May »Weather in June
June marks the entrance of summer within the geographical bounds of Keene, carrying along markedly raised temperature levels. The weather shift from May to June is significant, ushering in the highest levels of daylight, accounting for 15.3 hours on average. Weather in June »Weather in July
As the city's citizens gear up for the height of summer in July, Keene witnesses its hottest weather. The temperature parameters fluctuates from 79.9°F (26.6°C) to 58.6°F (14.8°C), representing the warmest on the entire year's weather chart. Weather in July »Weather in August
Despite being deep into summer, August in Keene exhibits a slight dampening in temperature as the profound heat of July gives way to relatively mild conditions. The fine balance of temperature coupled with moderate rainfall provides ideal conditions for nurturing flourishing greenery. Weather in August »Weather in September
September in Keene signals the shift towards autumn, presenting a noticeably cooler temperature range, with the highest temperature averaging around 70°F (21.1°C). As the leaves gradually change color, the city begins to adopt a remarkably picturesque landscape. Weather in September »Weather in October
October brings Keene a full immersion into autumn, with definitive drops in temperature coming into effect. In correlation with the change in season, the city witnesses a vibrant transformation, the fall colors reaching their peak brilliance. Weather in October »Weather in November
As November unfolds, Keene witnesses a stark transition towards colder weather, hinting at the impending arrival of winter. The temperature fluctuation between October and November points towards a considerable dip, with the mercury falling to a high of 44.4°F (6.9°C). Weather in November »Weather in December
December in Keene seals the year with a weather pattern dominated by cold temperatures and frequent snowfall. The metamorphosis from November's weather displays a distinct downward trend in temperature, registering a high of 33.4°F (0.8°C). Weather in December »Updated: Jun 29, 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
The lowest temperatures are recorded in January, with averages reaching a high of 27.9°F (-2.3°C) and a low of 15.1°F (-9.4°C).
In Keene, New Hampshire, during the entire year, the rain falls for 125.1 days and collects up to 11.69" (297mm) of precipitation.
Months with snowfall are January through May, October through December.
The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 2.64" (67mm) of snow.
Throughout the year, there are 39.8 snowfall days, and 10.2" (259mm) of snow is accumulated.
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
February is the most humid month in Keene, New Hampshire, with an average relative humidity of 85%.
The month with the least sunshine is February, with an average of 4.4h of sunshine.
The month with the least rainfall is March, when the rain falls for 10 days and typically collects 0.75" (19mm) of precipitation.
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.
April is the least humid month, with an average relative humidity of 74%.
In Keene, snow does not fall in June through September.
With an average of 15h and 18min of daylight, June has the longest days of the year.
The warmest temperatures occur during July, when averages reach a peak of 79.9°F (26.6°C) and a low of 58.6°F (14.8°C).
The month with the most rainfall is July, when the rain falls for 13.3 days and typically aggregates up to 1.3" (33mm) of precipitation.
July is the month with the highest UV index, with an average maximum UV index of 6.
August has the most sunshine of the year, with an average of 10.3h of sunshine.
The month with the shortest days in Keene is December, with an average of 9h and 6min of daylight.
Average temperature
Keene, NH
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure
Keene, NH
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Keene, NH
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.9mph - Average wind speed in March:
7.9mph - Average wind speed in April:
7.7mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7.3mph
The windiest months (with the highest average wind speed) are January, February and March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Keene, NH
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Keene, NH
- Average rainfall in January:
0.83" - Average rainfall in February:
0.79" - Average rainfall in March:
0.75" - Average rainfall in April:
0.98" - Average rainfall in May:
1.14" - Average rainfall in June:
1.18"
- Average rainfall in July:
1.3" - Average rainfall in August:
0.94" - Average rainfall in September:
0.79" - Average rainfall in October:
1.18" - Average rainfall in November:
0.94" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.75").
Average rainfall days
Keene, NH
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.6 days - Average rainfall days in March:
10 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12 days - Average rainfall days in September:
9.3 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Keene, NH
- Average snowfall in January:
2.64" - Average snowfall in February:
2.44" - Average snowfall in March:
1.42" - Average snowfall in April:
0.79" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Keene, NH
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
9.4 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.1 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:
0.6 days - Average snowfall days in November:
3 days - Average snowfall days in December:
7.4 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Keene, NH
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 24min - Average sunshine in March:
5h and 42min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Keene, NH
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
15.2 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
17 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index
Keene, NH
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Keene, NH
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Keene, NH
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
