Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In December, the average high-temperature goes from a frosty 48.2°F (9°C) in November to an icy 38.3°F (3.5°C). In the month of December, an average of 27.1°F (-2.7°C) marks the low-temperature.Humidity
In December, the average relative humidity is 85%.Rainfall
In Herman, during December, the rain falls for 12.2 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Herman, during the entire year, the rain falls for 182.7 days and collects up to 36.18" (919mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Herman, it is snowing for 14 days. Throughout December, 4.88" (124mm) of snow is accumulated. Throughout the year, in Herman, there are 67 snowfall days, and 26.54" (674mm) of snow is accumulated.Daylight
December has the shortest days of the year in Herman, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:52 pm. On the last day of December, in Herman, sunrise is at 7:43 am and sunset at 5:01 pm EST.
Sunshine
In December, the average sunshine in Herman is 3.1h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is it in Herman in December?
What is the average humidity in December in Herman?
How much does it rain in Herman in December?
How many days does it snow in December in Herman?
What is the month with the shortest days in Herman?
How many hours of daylight does Herman have in December?
When are sunrise and sunset in December in Herman?
How long on average sun shines in December in Herman?
What is the month with the lowest UV index in Herman?
What is the UV index reading in December in Herman?
Average temperature in December
Herman, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Herman, PA
- Average pressure in December: 30.1"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 December
Herman, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Herman, PA
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Herman, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is April (3.74").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in December
Herman, PA
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (10 days).
Average snowfall in December
Herman, PA
- Average snowfall in December: 4.88"
The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Herman, PA
- Average snowfall days in December: 14 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Herman, PA
- 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 December: 3h and 1min
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 48min).
Average sunshine days in December
Herman, PA
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is November (13.7 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Herman, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Herman, PA
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Herman, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Herman, Pennsylvania, USA
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