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
Johannesburg's coldest temperatures are experienced in January, with average high temperatures of 23.5°F (-4.7°C) and lows of 14.5°F (-9.7°C).Humidity
The months with the highest humidity in Johannesburg are January and February, with an average relative humidity of 90%.Rainfall
In Johannesburg, in January, it is raining for 5 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 140.1 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 24.5 days and accumulates 10.94" (278mm) of snow.Daylight
In Johannesburg, the average length of the day in January is 9h and 14min.On the first day of the month, sunrise is at 8:15 am and sunset at 5:06 pm. On the last day of January, in Johannesburg, sunrise is at 7:58 am and sunset at 5:43 pm EST.
Sunshine
With an average of 1.7h of sunshine, January has the least sunshine of the year in Johannesburg.UV index
The months with the lowest UV index in Johannesburg are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during January translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What time of the year is the coldest in Johannesburg?
How cold is it in Johannesburg in January?
What is the most humid month in Johannesburg?
What is the average humidity in January in Johannesburg?
How many days does it rain in January in Johannesburg?
What is the snowiest month in Johannesburg?
How much does it snow in Johannesburg in January?
What is the average length of the day in January in Johannesburg?
When is the sunrise / sunset in January in Johannesburg?
What is the month with the least sunshine in Johannesburg?
How many hours of sunshine does Johannesburg have in January?
When is the lowest UV index in Johannesburg?
What is the UV index reading in January in Johannesburg?
Average temperature in January
Johannesburg, MI
- Average high temperature in January: 23.5°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in January: 14.5°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in January
Johannesburg, MI
- Average pressure in January: 30.03"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Johannesburg, MI
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in January
Johannesburg, MI
- Average humidity in January: 90%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in January
Johannesburg, MI
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in January
Johannesburg, MI
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is October (17.5 days).
The months with the least rainy days are January and February (5 days).
Average snowfall in January
Johannesburg, MI
- Average snowfall in January: 10.94"
The month with the highest snowfall is January (10.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Johannesburg, MI
- Average snowfall days in January: 24.5 days
The month with the highest number of snowfall days is January (24.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Johannesburg, MI
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 1h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in January
Johannesburg, MI
- Average sunshine days in January: 6.2 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.4 days).
Average UV index in January
Johannesburg, MI
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in January
Johannesburg, MI
- Average cloud cover in January: 83
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in January
Johannesburg, MI
- Average visibility in January: 4mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Johannesburg, Michigan, USA
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