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 arrival of January brings an average high-temperature of a still wintry 33.4°F (0.8°C), closely following the temperature pattern of December. In the month of January, Heyburn's average low-temperature falls to a freezing cold 22.1°F (-5.5°C).Humidity
The most humid month is January, with an average relative humidity of 80%.Rainfall
In January, the rain falls for 8.5 days. Throughout January, 1.26" (32mm) of precipitation is accumulated. In Heyburn, during the entire year, the rain falls for 105.2 days and collects up to 10.63" (270mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Heyburn, in January, during 11.8 snowfall days, 6.26" (159mm) of snow is typically accumulated. Throughout the year, there are 50.9 snowfall days, and 24.57" (624mm) of snow is accumulated.Daylight
In Heyburn, the average length of the day in January is 9h and 29min.On the first day of January, sunrise is at 8:04 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:46 pm MST.
Sunshine
The month with the least sunshine is January, with an average of 5.7h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January in Heyburn?
How high is the UV index in January?
Average temperature in January
Heyburn, ID
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in January: 22.1°F
The months with the highest average low temperature are July and August (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in January
Heyburn, ID
- Average pressure in January: 30.29"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Heyburn, ID
- Average wind speed in January: 7.1mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is January (7.1mph).
Average humidity in January
Heyburn, ID
- Average humidity in January: 80%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (30%).
Average rainfall in January
Heyburn, ID
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in January
Heyburn, ID
- Average rainfall days in January: 8.5 days
The months with the highest number of rainy days are March and April (14 days).
The months with the least rainy days are July and August (5.2 days).
Average snowfall in January
Heyburn, ID
- Average snowfall in January: 6.26"
The month with the highest snowfall is December (6.54").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Heyburn, ID
- Average snowfall days in January: 11.8 days
The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Heyburn, ID
- 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 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in January
Heyburn, ID
- Average sunshine days in January: 16.6 days
The month with the most sunshine days is July (22.6 days).
The month with the least sunshine days is March (12 days).
Average UV index in January
Heyburn, ID
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Heyburn, ID
- Average cloud cover in January: 39
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in January
Heyburn, ID
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Heyburn, Idaho, USA
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