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
January is the month when Dorchester, Iowa, experiences its coldest temperatures, averaging a high of 21.7°F (-5.7°C) and a low of 8.8°F (-12.9°C).Humidity
January is the most humid month in Dorchester, with an average relative humidity of 90%.Rainfall
January is the month with the least rainfall in Dorchester. Rain falls for 3.3 days and accumulates 0.87" (22mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 12 days. Throughout January, 4.49" (114mm) of snow is accumulated. Throughout the year, in Dorchester, there are 51.4 snowfall days, and 22.2" (564mm) of snow is accumulated.Daylight
The average length of the day in January in Dorchester is 9h and 24min.On the first day of the month, sunrise is at 7:38 am and sunset at 4:40 pm. On the last day of January, in Dorchester, sunrise is at 7:23 am and sunset at 5:15 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.4h of sunshine.UV index
The months with the lowest UV index in Dorchester are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 1 transforms into these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the coldest time of year in Dorchester?
How cold is it in Dorchester in January?
What is the most humid month in Dorchester?
What is the average humidity in January in Dorchester?
What is the driest month in Dorchester?
How much does it rain in Dorchester in January?
How much does it snow in Dorchester in January?
How many hours of daylight does Dorchester have in January?
When are sunrise and sunset in January in Dorchester?
What is the month with the least sunshine in Dorchester?
How long on average sun shines in January in Dorchester?
What is the month with the lowest UV index in Dorchester?
What is the UV index reading in January in Dorchester?
Average temperature in January
Dorchester, IA
- Average high temperature in January: 21.7°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 (21.7°F).
- Average low temperature in January: 8.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (8.8°F).
Average pressure in January
Dorchester, IA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Dorchester, IA
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in January
Dorchester, IA
- Average humidity in January: 90%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in January
Dorchester, IA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Dorchester, IA
- Average rainfall days in January: 3.3 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (3 days).
Average snowfall in January
Dorchester, IA
- Average snowfall in January: 4.49"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Dorchester, IA
- Average snowfall days in January: 12 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Dorchester, IA
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Dorchester, IA
- Average sunshine days in January: 17.7 days
The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in January
Dorchester, IA
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Dorchester, IA
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Dorchester, IA
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
Dorchester, Iowa, USA
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