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
In Forest Hills, the lowest average temperatures are observed in January, with a high of 32.9°F (0.5°C) and a low of 20.7°F (-6.3°C).Humidity
The average relative humidity in January in Forest Hills is 84%.Rainfall
In Forest Hills, during January, the rain falls for 10.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Forest Hills, during the entire year, the rain falls for 182.2 days and collects up to 34.84" (885mm) of precipitation.Snowfall
Months with snowfall in Forest Hills are January through May, October through December. The month with the most snowfall is January, when snow falls for 17.8 days and typically aggregates up to 6.42" (163mm) of snow.Daylight
In January, the average length of the day is 9h and 41min.On the first day of January, sunrise is at 7:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:35 pm EST.
Sunshine
With an average of 2.9h of sunshine, January has the least sunshine of the year.UV index
In January, the average daily maximum UV index in Forest Hills is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What time of the year is the coldest in Forest Hills?
How cold is January in Forest Hills?
What is the average humidity in January in Forest Hills?
How many days does it rain in January in Forest Hills?
When does it snow the most in Forest Hills?
How many days does it snow in January in Forest Hills?
How many hours of daylight does Forest Hills have in January?
When are sunrise and sunset in January in Forest Hills?
What is the month with the least sunshine in Forest Hills?
How many hours of sunshine does Forest Hills have in January?
What is the UV index intensity in January in Forest Hills?
Average temperature in January
Forest Hills, PA
- Average high temperature in January: 32.9°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 (32.9°F).
- Average low temperature in January: 20.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in January
Forest Hills, PA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Forest Hills, PA
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Forest Hills, PA
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in January
Forest Hills, PA
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in January
Forest Hills, PA
- Average rainfall days in January: 10.8 days
The month with the highest number of rainy days is May (21 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in January
Forest Hills, PA
- Average snowfall in January: 6.42"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Forest Hills, PA
- Average snowfall days in January: 17.8 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Forest Hills, 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 18min).
- Average sunshine in January: 2h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in January
Forest Hills, PA
- Average sunshine days in January: 7.4 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in January
Forest Hills, PA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Forest Hills, PA
- Average cloud cover in January: 70
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Forest Hills, PA
- Average visibility in January: 4mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
Forest Hills, Pennsylvania, USA
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