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
Erma reaches its lowest average temperatures in January, measuring 40.5°F (4.7°C) at the peak and 32.2°F (0.1°C) at the lowest.Humidity
In January, the average relative humidity in Erma is 74%.Rainfall
The month with the least rainfall in Erma, New Jersey, is January, when the rain falls for 8.7 days and typically collects 2.13" (54mm) of precipitation.Snowfall
Months with snowfall are January through March and December. In January, in Erma, it is snowing for 2.4 days. Throughout January, 0.67" (17mm) of snow is accumulated. In Erma, during the entire year, snow falls for 8.3 days and aggregates up to 3.11" (79mm) of snow.Daylight
In Erma, the average length of the day in January is 9h and 48min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:06 am and sunset at 5:18 pm EST.
Sunshine
In Erma, the average sunshine in January is 5.3h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in January leads to these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Erma?
Is it cold in Erma during January?
What is the average humidity in January in Erma?
What is the driest month in Erma?
How many days does it rain in January in Erma?
How much does it snow in Erma in January?
What is the average length of the day in January in Erma?
What time are sunrise and sunset in January in Erma?
How long on average sun shines in January in Erma?
What is the month with the lowest UV index in Erma?
What is the UV index intensity in January in Erma?
Average temperature in January
Erma, NJ
- Average high temperature in January: 40.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in January: 32.2°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in January
Erma, NJ
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Erma, NJ
- Average wind speed in January: 13.5mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).
Average humidity in January
Erma, NJ
- Average humidity in January: 74%
The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).
Average rainfall in January
Erma, NJ
- Average rainfall in January: 2.13"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in January
Erma, NJ
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in January
Erma, NJ
- Average snowfall in January: 0.67"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Erma, NJ
- Average snowfall days in January: 2.4 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Erma, NJ
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Erma, NJ
- Average sunshine days in January: 18.6 days
The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are May and June (12.5 days).
Average UV index in January
Erma, NJ
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in January
Erma, NJ
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in January
Erma, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Erma, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location