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
The month of January, characterized by an average high of 30.6°F (-0.8°C) and a low of 18°F (-7.8°C), is recognized as the coldest in Londonderry.Humidity
The average relative humidity in January is 80%.Rainfall
January is the month with the least rainfall in Londonderry. Rain falls for 4.1 days and accumulates 0.75" (19mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Londonderry. In Londonderry, during January, snow falls for 7.1 days and regularly aggregates up to 2.4" (61mm) of snow. Throughout the year, there are 26.1 snowfall days, and 11.54" (293mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 27min.On the first day of the month, sunrise is at 7:16 am and sunset at 4:21 pm. On the last day of January, in Londonderry, New Hampshire, sunrise is at 7:01 am and sunset at 4:56 pm EST.
Sunshine
In January, the average sunshine in Londonderry, New Hampshire, is 5.1h.UV index
The months with the lowest UV index in Londonderry are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Londonderry?
How cold is January in Londonderry?
What is the average humidity in January in Londonderry?
What is the driest month in Londonderry?
How many days does it rain in January in Londonderry?
How many days does it snow in January in Londonderry?
How many hours of daylight does Londonderry have in January?
What time are sunrise and sunset in January in Londonderry?
How many hours of sunshine does Londonderry have in January?
When is the lowest UV index in Londonderry?
How high is the UV index in January in Londonderry?
Average temperature in January
Londonderry, NH
- Average high temperature in January: 30.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in January: 18°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in January
Londonderry, NH
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Londonderry, NH
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in January
Londonderry, NH
- Average humidity in January: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Londonderry, NH
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in January
Londonderry, NH
- Average rainfall days in January: 4.1 days
The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in January
Londonderry, NH
- Average snowfall in January: 2.4"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Londonderry, NH
- Average snowfall days in January: 7.1 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Londonderry, NH
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Londonderry, NH
- Average sunshine days in January: 21.3 days
The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).
Average UV index in January
Londonderry, NH
- 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, March, November and December (UV index 2).
Average cloud cover in January
Londonderry, NH
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Londonderry, NH
- Average visibility in January: 6mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).
Londonderry, New Hampshire, USA
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