Climate and monthly weather forecastHarriston, MS
Climate and monthly weather forecast
Weather in January
January, like December, is a moderate winter month in Harriston, Mississippi, with an average temperature varying between 55.4°F (13°C) and 40.1°F (4.5°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 55.4°F (13°C) and a low of 40.1°F (4.5°C). Weather in January »Weather in February
February, the last month of the winter in Harriston, is another mild month, with an average temperature fluctuating between 60.3°F (15.7°C) and 44.4°F (6.9°C). In February, Harriston experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 55.4°F (13°C) in January to a still refreshing 60.3°F (15.7°C). Weather in February »Weather in March
March, the first month of the spring in Harriston, is a pleasant month, with an average temperature ranging between max 68.2°F (20.1°C) and min 50.5°F (10.3°C). March brings a slight rise in Harriston's average high-temperature, moving from a mild 60.3°F (15.7°C) in February to an agreeable 68.2°F (20.1°C). Weather in March »Weather in April
April is a warm spring month in Harriston, Mississippi, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 75.7°F (24.3°C). The shift into April brings a slight increase in the average high-temperature, moving from a pleasant 68.2°F (20.1°C) in March to a warm 75.7°F (24.3°C). Weather in April »Weather in May
May, the last month of the spring in Harriston, is another warm month, with an average temperature fluctuating between 63.5°F (17.5°C) and 82.9°F (28.3°C). May's onset is marked by a subtle temperature increase, moving from 75.7°F (24.3°C) in April to a still moderately hot 82.9°F (28.3°C). Weather in May »Weather in June
June, the first month of the summer in Harriston, is a tropical month, with an average temperature varying between 89.4°F (31.9°C) and 70.5°F (21.4°C). The shift into June is marked by a modest rise in the average high-temperature, moving from May's moderately hot 82.9°F (28.3°C) to a hot 89.4°F (31.9°C). Weather in June »Weather in July
July, the same as June, in Harriston, Mississippi, is a hot summer month, with an average temperature varying between 72.7°F (22.6°C) and 91.4°F (33°C). The month of July, characterized by an average high of 91.4°F (33°C) and a low of 72.7°F (22.6°C), is recognized as the warmest. The heat index for July is computed to be a burning hot 114.8°F (46°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Harriston, Mississippi, with an average temperature varying between 91°F (32.8°C) and 72.3°F (22.4°C). As Harriston welcomes August, the average high-temperature stabilizes at a still tropical 91°F (32.8°C), showing little deviation from July's 91.4°F (33°C). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Harriston, Mississippi, with an average temperature fluctuating between 67.8°F (19.9°C) and 87.3°F (30.7°C). As Harriston welcomes September, the average high-temperature is noted at a still tropical 87.3°F (30.7°C), closely aligning with the preceding month. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Harriston, Mississippi, with an average temperature varying between 57.6°F (14.2°C) and 77.7°F (25.4°C). October's onset brings a reduction in the average high-temperature, from a tropical 87.3°F (30.7°C) in September to a warm 77.7°F (25.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another comfortable month in Harriston, Mississippi, with temperature in the range of an average low of 47.8°F (8.8°C) and an average high of 65.3°F (18.5°C). Stepping into November, Harriston observes a temperature decline, with the average high falling from October's moderately hot 77.7°F (25.4°C) to a refreshing 65.3°F (18.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderate month in Harriston, Mississippi, with an average temperature fluctuating between 43.7°F (6.5°C) and 58.5°F (14.7°C). In December, the meteorological conditions change slightly, with the average high-temperature moving from a comfortable 65.3°F (18.5°C) in November to a mild 58.5°F (14.7°C). Weather in December »Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest period in Harriston, Mississippi, tends to be January, when average temperatures fluctuate between a high of 55.4°F (13°C) and a low of 40.1°F (4.5°C).
In Harriston, during the entire year, the rain falls for 162.8 days and collects up to 34.33" (872mm) of precipitation.
January, February and December are months with snowfall in Harriston.
January is the month with the most snowfall. Snow falls for 1 days and accumulates 0.43" (11mm) of snow.
Throughout the year, there are 2 snowfall days, and 0.83" (21mm) of snow is accumulated.
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Harriston.
The most humid month in Harriston is February, with an average relative humidity of 82%.
March through November are months without snowfall.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
With an average of 14h and 12min of daylight, June has the longest days of the year.
The month with the most sunshine in Harriston, Mississippi, is June, with an average of 10.6h of sunshine.
The months with the highest UV index in Harriston are June through August, with an average maximum UV index of 7.
In Harriston, July records the average highest temperatures, peaking at 91.4°F (33°C) and reaching a low of 72.7°F (22.6°C).
The month with the most rainfall in Harriston, Mississippi, is August, when the rain falls for 19.5 days and typically aggregates up to 3.9" (99mm) of precipitation.
October is the least humid month, with an average relative humidity of 71%.
The month with the least rainfall is November, when the rain falls for 7.9 days and typically collects 1.81" (46mm) of precipitation.
With an average of 10h and 6min of daylight, December has the shortest days of the year in Harriston, Mississippi.
With an average of 4.9h of sunshine, December has the least sunshine of the year.
Average temperature
Harriston, MS
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (55.4°F).
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure
Harriston, MS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Harriston, MS
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.2mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.9mph - Average wind speed in September:
4.9mph - Average wind speed in October:
5.9mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (4.9mph).
Average humidity
Harriston, MS
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Harriston, MS
- Average rainfall in January:
2.99" - Average rainfall in February:
2.72" - Average rainfall in March:
2.91" - Average rainfall in April:
2.72" - Average rainfall in May:
2.52" - Average rainfall in June:
2.8"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days
Harriston, MS
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
13.6 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
18.4 days - Average rainfall days in August:
19.5 days - Average rainfall days in September:
15.5 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (7.9 days).
Average snowfall
Harriston, MS
The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Harriston, MS
- Average snowfall days in January:
1 days - Average snowfall days in February:
0.5 days - Average snowfall days in March:
0.1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Harriston, MS
- Average daylight in January:
10h and 24min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 0min - Average sunshine in March:
7h and 6min - Average sunshine in April:
9h and 18min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 54min - Average sunshine in December:
4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Harriston, MS
- Average sunshine days in January:
18 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
15.6 days - Average sunshine days in April:
16.4 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
9.2 days - Average sunshine days in September:
12.8 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (9.2 days).
Average UV index
Harriston, MS
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Harriston, MS
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility
Harriston, MS
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
