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 advent of January reveals an average high-temperature of a still freezing cold 25°F (-3.9°C), showing minimal difference from the prior month. In Granby, the average temperature during the nights of January drops to an arctic cold 4.3°F (-15.4°C).Humidity
The average relative humidity in January is 86%.Rainfall
In January, the rain falls for 7.1 days. Throughout January, 0.75" (19mm) of precipitation is accumulated. In Granby, during the entire year, the rain falls for 96.3 days and collects up to 11.54" (293mm) of precipitation.Snowfall
January through June, August through December are months with snowfall. In January, it is snowing for 14.3 days. Throughout January, 5.83" (148mm) of snow is accumulated. Throughout the year, in Granby, there are 110.7 snowfall days, and 59.88" (1521mm) of snow is accumulated.Daylight
In Granby, Colorado, the average length of the day in January is 9h and 43min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:20 pm MST.
Sunshine
In January, the average sunshine is 6.3h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the average humidity in January?
How much does it rain in Granby in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January in Granby?
How many hours of sunshine does Granby have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Granby, CO
- Average high temperature in January: 25°F
The warmest month (with the highest average high temperature) is July (72.3°F).
The month with the lowest average high temperature is December (24.6°F).
- Average low temperature in January: 4.3°F
The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in January
Granby, CO
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.93"Hg).
Average wind speed in January
Granby, CO
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Granby, CO
- Average humidity in January: 86%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (49%).
Average rainfall in January
Granby, CO
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in January
Granby, CO
- Average rainfall days in January: 7.1 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is October (4.9 days).
Average snowfall in January
Granby, CO
- Average snowfall in January: 5.83"
The month with the highest snowfall is April (10.94").
The month with the least snowfall is July (0").
Average snowfall days in January
Granby, CO
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is February (16.1 days).
The month with the least snowfall days is July (0 days).
Average daylight in January /
Average sunshine in January
Granby, CO
- 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: 6h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in January
Granby, CO
- Average sunshine days in January: 16 days
The months with the most sunshine days are September and November (19.5 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in January
Granby, CO
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in January
Granby, CO
- Average cloud cover in January: 37
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in January
Granby, CO
- Average visibility in January: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Granby, Colorado, USA
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