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
Entering January, the average high-temperature is recorded at a still cold 40.1°F (4.5°C), exhibiting a minimal shift from December's 39°F (3.9°C). During January nights, Niwot records an average temperature of 21.2°F (-6°C).Humidity
The average relative humidity in January in Niwot is 65%.Rainfall
The month with the least rainfall in Niwot is January, when the rain falls for 3.5 days and typically collects 0.35" (9mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Niwot, in January, during 5.8 snowfall days, 2.64" (67mm) of snow is typically accumulated. Throughout the year, in Niwot, there are 37.1 snowfall days, and 26.73" (679mm) of snow is accumulated.Daylight
The average length of the day in January in Niwot, Colorado, is 9h and 43min.On the first day of January, sunrise is at 7:22 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:17 pm MST.
Sunshine
In Niwot, the average sunshine in January is 7.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. 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. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
Is it cold in Niwot during January?
What is the average humidity in January in Niwot?
What is the driest month in Niwot?
How many days does it rain in January in Niwot?
How much does it snow in Niwot in January?
How many hours of daylight does Niwot have in January?
When is the sunrise / sunset in January in Niwot?
How many hours of sunshine does Niwot have in January?
What are the months with the lowest UV index in Niwot?
What is the UV index reading in January in Niwot?
Average temperature in January
Niwot, CO
- Average high temperature in January: 40.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (39°F).
- Average low temperature in January: 21.2°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (19.9°F).
Average pressure in January
Niwot, CO
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in January
Niwot, CO
- Average wind speed in January: 6.2mph
The windiest months (with the highest average wind speed) are March and April (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.6mph).
Average humidity in January
Niwot, CO
- Average humidity in January: 65%
The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is August (42%).
Average rainfall in January
Niwot, CO
- Average rainfall in January: 0.35"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in January
Niwot, CO
- Average rainfall days in January: 3.5 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in January
Niwot, CO
- Average snowfall in January: 2.64"
The month with the highest snowfall is November (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Niwot, CO
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Niwot, 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: 7h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in January
Niwot, CO
- Average sunshine days in January: 23.4 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in January
Niwot, CO
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Niwot, CO
- Average cloud cover in January: 21
The months with the most cloud cover are April and May (Cloud cover 26).
The months with the least cloud cover are June and September (Cloud cover 16).
Average visibility in January
Niwot, CO
- 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).
Niwot, Colorado, USA
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