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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another subzero cold winter month in Stillwater, Pennsylvania, with an average temperature ranging between max 31.8°F (-0.1°C) and min 19°F (-7.2°C). With average high temperatures of 31.8°F (-0.1°C) and lows of 19°F (-7.2°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Stillwater, Pennsylvania, with an average temperature ranging between min 21°F (-6.1°C) and max 35.2°F (1.8°C). The onset of February manifests an average high-temperature of a cold 35.2°F (1.8°C), demonstrating a minor variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Stillwater, is a frosty month, with an average temperature varying between 28.8°F (-1.8°C) and 44.4°F (6.9°C). March comes with an increase, with the average high-temperature moving from an icy 35.2°F (1.8°C) in February to a chilly 44.4°F (6.9°C). Weather in March »
Weather in April
April in Stillwater, Pennsylvania, is a refreshing spring month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 56.5°F (13.6°C). April brings a temperature increase, with average high-temperatures moving from March's frosty 44.4°F (6.9°C) to a mild 56.5°F (13.6°C). Weather in April »
Weather in May
May, the last month of the spring in Stillwater, is an agreeable month, with an average temperature varying between 68.4°F (20.2°C) and 48.7°F (9.3°C). May's arrival sees a rise in the average high-temperature, jumping from April's moderate 56.5°F (13.6°C) to an agreeable 68.4°F (20.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Stillwater, Pennsylvania, with an average temperature ranging between max 75.7°F (24.3°C) and min 55°F (12.8°C). June's arrival signals a modest temperature shift, moving from a pleasant 68.4°F (20.2°C) in May to a moderately hot 75.7°F (24.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Stillwater, Pennsylvania, with an average temperature varying between 59.5°F (15.3°C) and 81.3°F (27.4°C). July is the month when Stillwater's temperatures reach their peak, with averages of 81.3°F (27.4°C) and lows of 59.5°F (15.3°C). The heat index value for July is appraised at a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Stillwater, is also a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 57.7°F (14.3°C). Stepping into August, Stillwater records an average high-temperature of a still moderately hot 78.6°F (25.9°C), almost consistent with July. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Stillwater, Pennsylvania, with an average temperature ranging between max 72.5°F (22.5°C) and min 52.2°F (11.2°C). A mild shift in the average high-temperature occurs in September, reducing from a warm 78.6°F (25.9°C) in August to a pleasant 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Stillwater, Pennsylvania, with an average temperature fluctuating between 43.9°F (6.6°C) and 59.9°F (15.5°C). Stillwater, Pennsylvania, in October demonstrates a small temperature transition, adjusting from an average high of a pleasant 72.5°F (22.5°C) in September to a moderate 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Stillwater, Pennsylvania, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 32.9°F (0.5°C). Stillwater, Pennsylvania, in November undergoes a mild reduction in the average high-temperature, shifting from October's moderate 59.9°F (15.5°C) to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in Stillwater, is still a cold month, with an average temperature ranging between min 27°F (-2.8°C) and max 37.6°F (3.1°C). Stillwater's weather changes with the onset of December, slightly falling from a chilly 47.3°F (8.5°C) in November to a cold 37.6°F (3.1°C). Weather in December »
Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January brings the lowest temperatures, with an average high of 31.8°F (-0.1°C) and an average low of 19°F (-7.2°C).
How many days does it rain in Stillwater?
Throughout the year, there are 166.3 rainfall days, and 31.06" (789mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 12.9 days and typically aggregates up to 5.94" (151mm) of snow.
How much does it snow?
In Stillwater, during the entire year, snow falls for 47.6 days and aggregates up to 22.91" (582mm) of snow.
What is the most humid month?
February is the most humid month, with an average relative humidity of 83%.
What is the month with the least sunshine?
With an average of 3.8h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
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.
What is the least humid month?
April is the least humid month in Stillwater, with an average relative humidity of 77%.
What is the rainiest month?
The wettest months are April and May, with an average 2.99" (76mm) of rainfall.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 5, are months with the highest UV index.
When it does not snow?
In Stillwater, snow does not fall in June through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What part of the year is the hottest?
In Stillwater, July records the average highest temperatures, peaking at 81.3°F (27.4°C) and reaching a low of 59.5°F (15.3°C).
What month has the most sunshine?
With an average of 10.2h of sunshine, July has the most sunshine of the year.
What is the driest month in Stillwater?
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 2.05" (52mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
What is the month with the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Stillwater, PA
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure
Stillwater, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.07"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Stillwater, PA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.5mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Stillwater, PA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall
Stillwater, PA
- Average rainfall in January:
2.44" - Average rainfall in February:
2.32" - Average rainfall in March:
2.56" - Average rainfall in April:
2.99" - Average rainfall in May:
2.99" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.68" - Average rainfall in September:
2.05" - Average rainfall in October:
2.68" - Average rainfall in November:
2.36" - Average rainfall in December:
2.52"
The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days
Stillwater, PA
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
14 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
12.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).
Average snowfall
Stillwater, PA
- Average snowfall in January:
5.94" - Average snowfall in February:
5.83" - Average snowfall in March:
4.41" - Average snowfall in April:
0.35" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Stillwater, PA
- Average snowfall days in January:
12.9 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
7.8 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 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:
0.2 days - Average snowfall days in November:
3.1 days - Average snowfall days in December:
9.4 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Stillwater, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days
Stillwater, PA
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
9.8 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
12.9 days - Average sunshine days in November:
16.3 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).
Average UV index
Stillwater, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Stillwater, PA
The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility
Stillwater, PA
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).
Stillwater, Pennsylvania, USA
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