Climate and monthly weather forecastHillsboro, MO
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Hillsboro, Missouri, with an average temperature varying between 39°F (3.9°C) and 25.2°F (-3.8°C). January, known for its average high temperature of 39°F (3.9°C) and an average low temperature of 25.2°F (-3.8°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Hillsboro, Missouri, with an average temperature fluctuating between 43.3°F (6.3°C) and 28.2°F (-2.1°C). The advent of February denotes an average high-temperature of a chilly 43.3°F (6.3°C), subtly different from January's 39°F (3.9°C). Weather in February »Weather in March
The first month of the spring, March, is a cool month in Hillsboro, Missouri, with an average temperature ranging between min 38.1°F (3.4°C) and max 54.9°F (12.7°C). The arrival of March brings an increase in high-temperatures, moving from a chilly 43.3°F (6.3°C) in February to a fresh 54.9°F (12.7°C). Weather in March »Weather in April
April is a refreshing spring month in Hillsboro, Missouri, with an average temperature varying between 47.7°F (8.7°C) and 65.8°F (18.8°C). As Hillsboro welcomes April, the average high-temperature sees a rise, transitioning from a fresh 54.9°F (12.7°C) in March to a refreshing 65.8°F (18.8°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Hillsboro, Missouri, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 57°F (13.9°C). Hillsboro's transition into May is marked by a temperature shift, moving from a refreshing 65.8°F (18.8°C) in April to a warm 75.6°F (24.2°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Hillsboro, Missouri, with an average temperature fluctuating between 84.7°F (29.3°C) and 65.7°F (18.7°C). The beginning of June marks a shift in the average high-temperature, moving from May's warm 75.6°F (24.2°C) to a still moderately hot 84.7°F (29.3°C). Weather in June »Weather in July
July is a tropical summer month in Hillsboro, Missouri, with an average temperature varying between 87.8°F (31°C) and 68.4°F (20.2°C). Hillsboro records the warmest temperatures in July, averaging a high of 87.8°F (31°C) and a low of 68.4°F (20.2°C). The average heat index in July is appraised at a blistering 104°F (40°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Hillsboro, Missouri, with an average temperature fluctuating between 86.2°F (30.1°C) and 66.7°F (19.3°C). Hillsboro's average high-temperature in August is a still hot 86.2°F (30.1°C), marking an insignificant difference from the 87.8°F (31°C) of July. Weather in August »Weather in September
September, the first month of the autumn in Hillsboro, is still a warm month, with an average temperature fluctuating between 59.9°F (15.5°C) and 79.9°F (26.6°C). September indicates a minor shift in the average high-temperature, from August's tropical 86.2°F (30.1°C) to a moderately hot 79.9°F (26.6°C). Weather in September »Weather in October
October, like September, in Hillsboro, Missouri, is another comfortable autumn month, with an average temperature varying between 48.6°F (9.2°C) and 66.7°F (19.3°C). The transition into October involves a decrease in the average high-temperature, falling from a warm 79.9°F (26.6°C) in September to an enjoyable 66.7°F (19.3°C). Weather in October »Weather in November
November, the last month of the autumn in Hillsboro, is also a fresh month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 53.8°F (12.1°C). Hillsboro's November weather features a mild decline in high-temperatures, reducing from a comfortable 66.7°F (19.3°C) in October to a cool 53.8°F (12.1°C). Weather in November »Weather in December
December, the first month of the winter in Hillsboro, is also a frosty month, with an average temperature fluctuating between 43.3°F (6.3°C) and 30.4°F (-0.9°C). In Hillsboro, entering December brings a temperature decrement, reducing from November's fresh 53.8°F (12.1°C) to a chilly 43.3°F (6.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Hillsboro, MO
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Hillsboro, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Hillsboro, MO
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.7mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.4mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.6mph - Average wind speed in October:
7.2mph - Average wind speed in November:
8mph - Average wind speed in December:
8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Hillsboro, MO
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Hillsboro, MO
- Average rainfall in January:
1.85" - Average rainfall in February:
1.5" - Average rainfall in March:
2.13" - Average rainfall in April:
3.19" - Average rainfall in May:
3.46" - Average rainfall in June:
2.83"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.99" - Average rainfall in September:
1.77" - Average rainfall in October:
2.32" - Average rainfall in November:
1.61" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days
Hillsboro, MO
- Average rainfall days in January:
7 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (7 days).
Average snowfall
Hillsboro, MO
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Hillsboro, MO
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
6.1 days - Average snowfall days in March:
2.5 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
4.6 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Hillsboro, MO
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Hillsboro, MO
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
Hillsboro, MO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Hillsboro, MO
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility
Hillsboro, 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).





