Climate and monthly weather forecastSaint Robert, MO
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Saint Robert, Missouri, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 40.3°F (4.6°C). January, with average temperatures reaching a high of 40.3°F (4.6°C) and a low of 25°F (-3.9°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Saint Robert, is a frosty month, with an average temperature ranging between max 44.4°F (6.9°C) and min 28.4°F (-2°C). An average high-temperature of a chilly 44.4°F (6.9°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »Weather in March
March, the first month of the spring in Saint Robert, is a refreshing month, with an average temperature varying between 55.9°F (13.3°C) and 38.1°F (3.4°C). Saint Robert's transition into March brings a rise in the average high-temperature, moving from a frosty 44.4°F (6.9°C) in February to a moderate 55.9°F (13.3°C). Weather in March »Weather in April
April is an enjoyable spring month in Saint Robert, Missouri, with an average temperature varying between 47.3°F (8.5°C) and 66.6°F (19.2°C). April indicates a change in the average high-temperature, moving up from a refreshing 55.9°F (13.3°C) in March to a comfortable 66.6°F (19.2°C). Weather in April »Weather in May
May, the last month of the spring in Saint Robert, is a moderately hot month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 55.9°F (13.3°C). May's arrival coincides with a rise in the average high-temperature, moving from April's refreshing 66.6°F (19.2°C) to a moderately hot 75.7°F (24.3°C). Weather in May »Weather in June
June, the first month of the summer in Saint Robert, is a tropical month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 86.5°F (30.3°C). Saint Robert's transition into June is marked by a rise in the average high-temperature, advancing from a moderately hot 75.7°F (24.3°C) in May to a hot 86.5°F (30.3°C). Weather in June »Weather in July
July, like June, is another hot summer month in Saint Robert, Missouri, with temperature in the range of an average low of 67.8°F (19.9°C) and an average high of 89.2°F (31.8°C). Saint Robert's warmest month, July, registers temperatures that range from a high of 89.2°F (31.8°C) to a low of 67.8°F (19.9°C). The average heat index in July is calculated to be a blistering 105.8°F (41°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Saint Robert, Missouri, with an average temperature ranging between max 87.3°F (30.7°C) and min 65.8°F (18.8°C). The arrival of August brings an average high-temperature of a still hot 87.3°F (30.7°C), closely following the temperature pattern of July. Weather in August »Weather in September
September, the first month of the autumn in Saint Robert, is also a moderately hot month, with an average temperature ranging between max 80.4°F (26.9°C) and min 59.4°F (15.2°C). September implies a soft temperature shift, with average high-temperatures reducing from August's hot 87.3°F (30.7°C) to a warm 80.4°F (26.9°C). Weather in September »Weather in October
October, like September, in Saint Robert, Missouri, is another comfortable autumn month, with an average temperature fluctuating between 66.6°F (19.2°C) and 48°F (8.9°C). As September transitions into October, Saint Robert sees a drop in the average high-temperature, transitioning from a warm 80.4°F (26.9°C) to a refreshing 66.6°F (19.2°C). Weather in October »Weather in November
November, the last month of the autumn in Saint Robert, is also a fresh month, with an average temperature fluctuating between 37.6°F (3.1°C) and 54.3°F (12.4°C). With November's arrival, Saint Robert sees a decrease in average high-temperatures, moving from an enjoyable 66.6°F (19.2°C) in October to a fresh 54.3°F (12.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Saint Robert, Missouri, with an average temperature varying between 29.7°F (-1.3°C) and 43.7°F (6.5°C). The shift to December brings a decrease in the average high-temperature, falling from a cool 54.3°F (12.4°C) in November to a frosty 43.7°F (6.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Saint Robert, MO
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (40.3°F).
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Saint Robert, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"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 (29.93"Hg).
Average wind speed
Saint Robert, MO
- Average wind speed in January:
8.7mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.4mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7.3mph - Average wind speed in November:
8.2mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Saint Robert, MO
The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are August, September and October (73%).
Average rainfall
Saint Robert, MO
- Average rainfall in January:
1.61" - Average rainfall in February:
1.73" - Average rainfall in March:
2.76" - Average rainfall in April:
3.66" - Average rainfall in May:
4.29" - Average rainfall in June:
3.35"
- Average rainfall in July:
3.11" - Average rainfall in August:
2.68" - Average rainfall in September:
2.01" - Average rainfall in October:
2.68" - Average rainfall in November:
1.73" - Average rainfall in December:
1.85"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days
Saint Robert, MO
- Average rainfall days in January:
7.6 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (7.5 days).
Average snowfall
Saint Robert, MO
- Average snowfall in January:
2.68" - Average snowfall in February:
3.54" - Average snowfall in March:
1.38" - Average snowfall in April:
0.08" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Saint Robert, MO
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.5 days - Average snowfall days in May:
0.1 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:
1.3 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Saint Robert, 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 12min - Average daylight in June:
14h and 42min
- 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 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 30min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days
Saint Robert, MO
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
19 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Saint Robert, MO
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Saint Robert, MO
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility
Saint Robert, MO
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





