Climate and monthly weather forecastUnionville, MO
Climate and monthly weather forecast
Weather in January
January, the same as December, in Unionville, Missouri, is another subzero cold winter month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 17.1°F (-8.3°C). January, with an average high of 30.7°F (-0.7°C) and a low of 17.1°F (-8.3°C), signifies the coldest month of the year. Weather in January »Weather in February
The last month of the winter, February, is a cold month in Unionville, Missouri, with an average temperature fluctuating between 35.2°F (1.8°C) and 20.5°F (-6.4°C). With the advent of February, Unionville's high-temperatures adjust to a cold 35.2°F (1.8°C), closely aligning with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Unionville, Missouri, with an average temperature varying between 33.6°F (0.9°C) and 49.5°F (9.7°C). March's onset is marked by a temperature increase, moving from an icy 35.2°F (1.8°C) in February to a frosty 49.5°F (9.7°C). Weather in March »Weather in April
April is a comfortable spring month in Unionville, Missouri, with an average temperature varying between 43.2°F (6.2°C) and 61°F (16.1°C). With the transition into April, Unionville experiences an increase in average high-temperatures, moving up from a chilly 49.5°F (9.7°C) in March to a comfortable 61°F (16.1°C). Weather in April »Weather in May
May, the last month of the spring in Unionville, is a pleasant month, with an average temperature ranging between min 53.1°F (11.7°C) and max 69.6°F (20.9°C). As April transitions into May, Unionville notices a gentle rise in the average high-temperature, transitioning from an enjoyable 61°F (16.1°C) to a pleasant 69.6°F (20.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Unionville, Missouri, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.9°F (26.6°C). The shift from May to June sees an increase in the average high-temperature, transitioning from an agreeable 69.6°F (20.9°C) to a moderately hot 79.9°F (26.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Unionville, Missouri, with an average temperature varying between 83.3°F (28.5°C) and 66.2°F (19°C). July is the warmest month of the year, registering average temperatures as high as 83.3°F (28.5°C) and as low as 66.2°F (19°C). July's heat index is calculated to be a hot 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Unionville, is also a moderately hot month, with an average temperature ranging between min 63.7°F (17.6°C) and max 82°F (27.8°C). With the arrival of August, Unionville's average high-temperature registers at a still warm 82°F (27.8°C), indicating a subtle variation from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Unionville, is also a moderately hot month, with an average temperature varying between 56.5°F (13.6°C) and 76.1°F (24.5°C). September sees a slight reduction in average high-temperature, with a shift from 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Unionville, Missouri, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 44.4°F (6.9°C). October is characterized by a noticeable reduction in the average high-temperature, falling from a warm 76.1°F (24.5°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »Weather in November
November, the last month of the autumn in Unionville, is also a frosty month, with an average temperature varying between 33.6°F (0.9°C) and 48.7°F (9.3°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a comfortable 61.7°F (16.5°C) to a chilly 48.7°F (9.3°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Unionville, Missouri, with temperature in the range of an average low of 23.9°F (-4.5°C) and an average high of 36.1°F (2.3°C). In Unionville, the beginning of December is marked by a lowered average high-temperature, shifting from November's frosty 48.7°F (9.3°C) to a wintry 36.1°F (2.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Unionville, MO
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30.7°F).
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure
Unionville, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Unionville, MO
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
Unionville, MO
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Unionville, MO
- Average rainfall in January:
0.87" - Average rainfall in February:
0.94" - Average rainfall in March:
1.93" - Average rainfall in April:
2.4" - Average rainfall in May:
3.15" - Average rainfall in June:
3.62"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.44" - Average rainfall in September:
2.44" - Average rainfall in October:
1.97" - Average rainfall in November:
1.22" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days
Unionville, MO
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.2 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall
Unionville, MO
- Average snowfall in January:
3.86" - Average snowfall in February:
3.07" - Average snowfall in March:
1.73" - Average snowfall in April:
2.17" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Unionville, MO
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
3.5 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0.2 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:
0.5 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
5.3 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Unionville, MO
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Unionville, MO
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
17.6 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Unionville, MO
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Unionville, MO
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Unionville, MO
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





