Climate and monthly weather forecastLewis, NY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Lewis, New York, with an average temperature fluctuating between 24.8°F (-4°C) and 12.4°F (-10.9°C). January, with its high-temperature average of 24.8°F (-4°C) and a low-temperature average of 12.4°F (-10.9°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Lewis, is another freezing cold month, with an average temperature ranging between min 13.5°F (-10.3°C) and max 27.7°F (-2.4°C). Lewis's weather in February displays an average high-temperature of a still subzero cold 27.7°F (-2.4°C), showing minor disparity from January's 24.8°F (-4°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Lewis, New York, with an average temperature varying between 21.6°F (-5.8°C) and 36.3°F (2.4°C). With the onset of March, Lewis observes a minor temperature ascent, with the average high-temperature adjusting from February's subzero cold 27.7°F (-2.4°C) to a cold 36.3°F (2.4°C). Weather in March »Weather in April
April is a fresh spring month in Lewis, New York, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 50.4°F (10.2°C). The commencement of April sees a shift in the average high-temperature, moving from an icy 36.3°F (2.4°C) in March to a fresh 50.4°F (10.2°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Lewis, New York, with an average temperature varying between 65.3°F (18.5°C) and 44.4°F (6.9°C). As May arrives, a noticeable rise in the average high-temperature is witnessed, moving from a fresh 50.4°F (10.2°C) in April to a comfortable 65.3°F (18.5°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Lewis, New York, with an average temperature ranging between max 72.1°F (22.3°C) and min 51.1°F (10.6°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from a refreshing 65.3°F (18.5°C) to a pleasant 72.1°F (22.3°C). Weather in June »Weather in July
July in Lewis, New York, is a moderately hot summer month, with an average temperature fluctuating between 78.6°F (25.9°C) and 56.8°F (13.8°C). Lewis's warmest weather arrives in July, when temperatures average a high of 78.6°F (25.9°C) and a low of 56.8°F (13.8°C). Weather in July »Weather in August
August, the last month of the summer in Lewis, is another warm month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 76.8°F (24.9°C). August's commencement is accompanied by an average high-temperature of a still warm 76.8°F (24.9°C), diverging marginally from July's 78.6°F (25.9°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Lewis, New York, with an average temperature ranging between max 69.3°F (20.7°C) and min 48.9°F (9.4°C). The average high-temperature slightly decreases in September, shifting from a moderately hot 76.8°F (24.9°C) in August to an agreeable 69.3°F (20.7°C). Weather in September »Weather in October
October, like September, in Lewis, New York, is another fresh autumn month, with an average temperature fluctuating between 54.9°F (12.7°C) and 39.7°F (4.3°C). As Lewis transitions into October, a marked decrease in the average high-temperature is observed, dropping from an agreeable 69.3°F (20.7°C) in September to a fresh 54.9°F (12.7°C). Weather in October »Weather in November
November, the last month of the autumn in Lewis, is another cold month, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 28.6°F (-1.9°C). As November arrives, Lewis's weather displays a decrease in high-temperatures, transitioning from October's fresh 54.9°F (12.7°C) to a cold 41.5°F (5.3°C). Weather in November »Weather in December
December, the first month of the winter in Lewis, is still a freezing cold month, with an average temperature varying between 19.9°F (-6.7°C) and 30.6°F (-0.8°C). Setting in of December comes with a decrease in the average high-temperature, moving from an icy 41.5°F (5.3°C) in November to a freezing cold 30.6°F (-0.8°C). Weather in December »Updated: Aug 22, 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
Lewis's coldest temperatures are experienced in January, with average high temperatures of 24.8°F (-4°C) and lows of 12.4°F (-10.9°C).
January and February, with an average relative humidity of 86%, are most humid months in Lewis.
Throughout the year, there are 176.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
Throughout the year, there are 85.1 snowfall days, and 43.03" (1093mm) of snow is accumulated.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
February is the month with the most snowfall. Snow falls for 19.3 days and accumulates 12.05" (306mm) of snow.
With an average of 3.6h of sunshine, February has the least sunshine of the year.
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 75%.
May through August, with an average maximum UV index of 5, are months with the highest UV index.
June is the month with the most rainfall. Rain falls for 17.4 days and accumulates 3.19" (81mm) of precipitation.
In Lewis, snow does not fall in June through September.
The month with the longest days is June, with an average of 15h and 30min of daylight.
Lewis registers the average highest temperatures during July, with peaks of 78.6°F (25.9°C) and lows of 56.8°F (13.8°C).
The month with the most sunshine in Lewis is July, with an average of 10.4h of sunshine.
The month with the least rainfall is September, when the rain falls for 11.1 days and typically collects 1.65" (42mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Lewis, NY
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (24.8°F).
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure
Lewis, NY
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.96"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:
30.07"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Lewis, NY
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.2mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.9mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.6mph
- 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:
5.8mph - Average wind speed in November:
6mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Lewis, NY
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall
Lewis, NY
- Average rainfall in January:
1.89" - Average rainfall in February:
1.97" - Average rainfall in March:
2.05" - Average rainfall in April:
2.6" - Average rainfall in May:
2.64" - Average rainfall in June:
3.19"
- Average rainfall in July:
2.28" - Average rainfall in August:
2.56" - Average rainfall in September:
1.65" - Average rainfall in October:
2.91" - Average rainfall in November:
2.28" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days
Lewis, NY
- Average rainfall days in January:
11.6 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
18.6 days - Average rainfall days in August:
16.7 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
16.2 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
13.1 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall
Lewis, NY
- Average snowfall in January:
8.54" - Average snowfall in February:
12.05" - Average snowfall in March:
6.54" - Average snowfall in April:
2.32" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is February (12.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Lewis, NY
- Average snowfall days in January:
19.9 days - Average snowfall days in February:
19.3 days - Average snowfall days in March:
14.9 days - Average snowfall days in April:
5.5 days - Average snowfall days in May:
0.5 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:
1.7 days - Average snowfall days in November:
7.3 days - Average snowfall days in December:
16 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Lewis, NY
- 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:
3h and 54min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 18min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days
Lewis, NY
- Average sunshine days in January:
9.1 days - Average sunshine days in February:
7.6 days - Average sunshine days in March:
9.1 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
10.9 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
11.7 days - Average sunshine days in November:
13.5 days - Average sunshine days in December:
10 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (7.6 days).
Average UV index
Lewis, NY
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Lewis, NY
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Lewis, NY
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
