Climate and monthly weather forecastArrow Rock, MO
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Arrow Rock, Missouri, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 36.9°F (2.7°C). January is the coldest month of the year, registering average temperatures as high as 36.9°F (2.7°C) and as low as 23.2°F (-4.9°C). Weather in January »Weather in February
February, the last month of the winter in Arrow Rock, is another cold month, with temperature in the range of an average low of 26.4°F (-3.1°C) and an average high of 41°F (5°C). With the transition into February, Arrow Rock notes an average high-temperature of a still icy 41°F (5°C), closely resembling January. Weather in February »Weather in March
March, the first month of the spring in Arrow Rock, is a fresh month, with an average temperature varying between 54.1°F (12.3°C) and 37.6°F (3.1°C). Arrow Rock's March weather shows an increase in high-temperatures, moving from February's wintry 41°F (5°C) to a cool 54.1°F (12.3°C). Weather in March »Weather in April
April is an enjoyable spring month in Arrow Rock, Missouri, with an average temperature fluctuating between 64.8°F (18.2°C) and 46.8°F (8.2°C). April's arrival sees a rise in the average high-temperature, jumping from March's cool 54.1°F (12.3°C) to an enjoyable 64.8°F (18.2°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Arrow Rock, Missouri, with an average temperature varying between 56.3°F (13.5°C) and 73.8°F (23.2°C). The beginning of May marks a shift in the average high-temperature, moving from April's comfortable 64.8°F (18.2°C) to a warm 73.8°F (23.2°C). Weather in May »Weather in June
June, the first month of the summer in Arrow Rock, is still a warm month, with an average temperature ranging between max 84.4°F (29.1°C) and min 65.5°F (18.6°C). In Arrow Rock, the average high-temperature in June rises, from a moderately hot 73.8°F (23.2°C) in May, to a still warm 84.4°F (29.1°C). Weather in June »Weather in July
July is a hot summer month in Arrow Rock, Missouri, with an average temperature fluctuating between 68°F (20°C) and 86.5°F (30.3°C). Arrow Rock reaches its highest average temperatures in July, measuring 86.5°F (30.3°C) at the peak and 68°F (20°C) at the lowest. In July, the heat index is appraised at a torrid 100.4°F (38°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Arrow Rock, Missouri, with an average temperature fluctuating between 85.5°F (29.7°C) and 65.8°F (18.8°C). The shift into August records an average high-temperature of a moderately hot 85.5°F (29.7°C), subtly varied from July's 86.5°F (30.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Arrow Rock, Missouri, with an average temperature fluctuating between 79.3°F (26.3°C) and 59°F (15°C). September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 85.5°F (29.7°C) to a still moderately hot 79.3°F (26.3°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Arrow Rock, Missouri, with an average temperature ranging between max 65.3°F (18.5°C) and min 48.2°F (9°C). Welcoming October, Arrow Rock observes a shift in the average high-temperature, falling from September's moderately hot 79.3°F (26.3°C) to an enjoyable 65.3°F (18.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Arrow Rock, Missouri, with an average temperature fluctuating between 52.7°F (11.5°C) and 37°F (2.8°C). The move into November indicates a reduction in the average high-temperature, down from October's enjoyable 65.3°F (18.5°C) to a cool 52.7°F (11.5°C). Weather in November »Weather in December
December, the first month of the winter in Arrow Rock, is also an icy month, with an average temperature ranging between min 27.7°F (-2.4°C) and max 41.5°F (5.3°C). The arrival of December signals a shift in temperature, down from a cool 52.7°F (11.5°C) in November to an icy 41.5°F (5.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Arrow Rock, MO
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (36.9°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure
Arrow Rock, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"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:
30.11"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 (29.91"Hg).
Average wind speed
Arrow Rock, MO
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is March (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity
Arrow Rock, MO
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Arrow Rock, MO
- Average rainfall in January:
1.18" - Average rainfall in February:
1.46" - Average rainfall in March:
2.17" - Average rainfall in April:
3.03" - Average rainfall in May:
3.98" - Average rainfall in June:
2.99"
- Average rainfall in July:
2.99" - Average rainfall in August:
2.44" - Average rainfall in September:
2.28" - Average rainfall in October:
2.4" - Average rainfall in November:
1.61" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Arrow Rock, MO
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (5.6 days).
Average snowfall
Arrow Rock, MO
The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days
Arrow Rock, MO
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
2.2 days - Average snowfall days in April:
0.1 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:
0.6 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Arrow Rock, MO
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - 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 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 48min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 6min - 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 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Arrow Rock, MO
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
18 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
20 days
The months with the most sunshine days are January and December (20 days).
The month with the least sunshine days is May (12.3 days).
Average UV index
Arrow Rock, 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
Arrow Rock, MO
The months with the most cloud cover are January, February and March (Cloud cover 48).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility
Arrow Rock, 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).





