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
Jamaica reaches its lowest average temperatures in January, measuring 27.1°F (-2.7°C) at the peak and 14°F (-10°C) at the lowest.Humidity
January is the most humid month in Jamaica, with an average relative humidity of 83%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.9 days and typically collects 0.91" (23mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 10.8 days and typically aggregates up to 3.74" (95mm) of snow.Daylight
The average length of the day in January in Jamaica is 9h and 33min.On the first day of the month, sunrise is at 7:44 am and sunset at 4:56 pm. On the last day of January, in Jamaica, sunrise is at 7:30 am and sunset at 5:30 pm CST.
Sunshine
January has the least sunshine of the year in Jamaica, with an average of 4.2h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Jamaica. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the coldest time of year in Jamaica?
How cold is January in Jamaica?
What is the most humid month in Jamaica?
What is the average humidity in January in Jamaica?
What is the driest month in Jamaica?
How much does it rain in Jamaica in January?
When does it snow the most in Jamaica?
How many days does it snow in January in Jamaica?
How many hours of daylight does Jamaica have in January?
What time are sunrise and sunset in January in Jamaica?
What is the month with the least sunshine in Jamaica?
How many hours of sunshine does Jamaica have in January?
What are the months with the lowest UV index in Jamaica?
What is the UV index reading in January in Jamaica?
Average temperature in January
Jamaica, IA
- Average high temperature in January: 27.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in January: 14°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in January
Jamaica, IA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Jamaica, IA
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in January
Jamaica, IA
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).
Average rainfall in January
Jamaica, IA
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in January
Jamaica, IA
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in January
Jamaica, IA
- Average snowfall in January: 3.74"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Jamaica, IA
- Average snowfall days in January: 10.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jamaica, IA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Jamaica, IA
- Average sunshine days in January: 17.9 days
The months with the most sunshine days are October, November and December (18.9 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in January
Jamaica, IA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Jamaica, IA
- Average cloud cover in January: 54
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in January
Jamaica, IA
- 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).
Jamaica, Iowa, USA
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