Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Saint Peters's coldest weather arrives in January, when temperatures average a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).Humidity
In Saint Peters, the average relative humidity in January is 78%.Rainfall
In Saint Peters, in January, it is raining for 9.4 days, with typically 2.09" (53mm) of accumulated precipitation. In Saint Peters, during the entire year, the rain falls for 162.2 days and collects up to 27.87" (708mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Saint Peters, in January, snow falls for 7.3 days, with typically accumulated 2.4" (61mm) of snow. Throughout the year, in Saint Peters, there are 22.9 snowfall days, and 10.35" (263mm) of snow is accumulated.Daylight
In January, the average length of the day in Saint Peters is 9h and 42min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:47 pm. On the last day of January, in Saint Peters, sunrise is at 7:12 am and sunset at 5:19 pm EST.
Sunshine
The average sunshine in January in Saint Peters is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Saint Peters, Pennsylvania. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the coldest month in Saint Peters?
How cold is January in Saint Peters?
What is the average humidity in January in Saint Peters?
How much does it rain in Saint Peters in January?
How many days does it snow in January in Saint Peters?
What is the average length of the day in January in Saint Peters?
What time are sunrise and sunset in January in Saint Peters?
How many hours of sunshine does Saint Peters have in January?
What are the months with the lowest UV index in Saint Peters?
What is the UV index reading in January in Saint Peters?
Average temperature in January
Saint Peters, PA
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in January
Saint Peters, PA
- Average pressure in January: 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 in January
Saint Peters, PA
- Average wind speed in January: 8.3mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Saint Peters, PA
- Average humidity in January: 78%
The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Saint Peters, PA
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in January
Saint Peters, PA
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in January
Saint Peters, PA
- Average snowfall in January: 2.4"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Saint Peters, PA
- Average snowfall days in January: 7.3 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Saint Peters, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Saint Peters, PA
- Average sunshine days in January: 16.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in January
Saint Peters, PA
- Average UV index in January: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Saint Peters, PA
- Average cloud cover in January: 47
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Saint Peters, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are February, May, September and October (5mi).
Saint Peters, Pennsylvania, USA
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