Climate and monthly weather forecastSulphur Rock, AR
Climate and monthly weather forecast
Weather in January
January, the same as December, in Sulphur Rock, Arkansas, is a frosty winter month, with an average temperature ranging between min 31.5°F (-0.3°C) and max 45.1°F (7.3°C). In Sulphur Rock, Arkansas, January records the lowest average temperatures, peaking at 45.1°F (7.3°C) and reaching a low of 31.5°F (-0.3°C). Weather in January »Weather in February
February, the last month of the winter in Sulphur Rock, is also a frosty month, with an average temperature varying between 34.7°F (1.5°C) and 49.5°F (9.7°C). The arrival of February brings an average high-temperature of a still chilly 49.5°F (9.7°C), closely following the temperature pattern of January. Weather in February »Weather in March
The first month of the spring, March, is a mild month in Sulphur Rock, Arkansas, with an average temperature fluctuating between 42.4°F (5.8°C) and 59°F (15°C). As March arrives, Sulphur Rock's weather shows an increase in high-temperatures, moving from February's chilly 49.5°F (9.7°C) to a mild 59°F (15°C). Weather in March »Weather in April
April in Sulphur Rock, Arkansas, is a pleasant spring month, with an average temperature varying between 51.1°F (10.6°C) and 68.9°F (20.5°C). April's arrival signals an increase in average high-temperatures, moving from March's mild 59°F (15°C) to an agreeable 68.9°F (20.5°C). Weather in April »Weather in May
May, the last month of the spring in Sulphur Rock, is a moderately hot month, with an average temperature varying between 77.5°F (25.3°C) and 59.9°F (15.5°C). With the onset of May, Sulphur Rock's weather sees a minor temperature rise, transitioning from an agreeable 68.9°F (20.5°C) in April to a moderately hot 77.5°F (25.3°C). Weather in May »Weather in June
June, the first month of the summer in Sulphur Rock, is a tropical month, with an average temperature varying between 87.1°F (30.6°C) and 68.4°F (20.2°C). June's arrival is marked by an increase in the average high-temperature, moving from a moderately hot 77.5°F (25.3°C) in May to a hot 87.1°F (30.6°C). Weather in June »Weather in July
July, like June, is a hot summer month in Sulphur Rock, Arkansas, with an average temperature ranging between max 90.1°F (32.3°C) and min 70.5°F (21.4°C). In Sulphur Rock, the average temperatures in July are the highest, with a peak at 90.1°F (32.3°C) and a low of 70.5°F (21.4°C). For most parts of July, the heat index is computed to be a blisteringly hot 109.4°F (43°C). Weather in July »Weather in August
August, the last month of the summer in Sulphur Rock, is another hot month, with an average temperature fluctuating between 69.1°F (20.6°C) and 88.7°F (31.5°C). Sulphur Rock's average high-temperature marks a still tropical 88.7°F (31.5°C) with the advent of August, closely mirroring that of the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Sulphur Rock, is also a moderately hot month, with an average temperature ranging between min 62.8°F (17.1°C) and max 82.4°F (28°C). In Sulphur Rock, the average high-temperature in September gently drops from a tropical 88.7°F (31.5°C) in August to a moderately hot 82.4°F (28°C). Weather in September »Weather in October
October, the same as September, in Sulphur Rock, Arkansas, is another pleasant autumn month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 52°F (11.1°C). October is characterized by a reduction in the average high-temperature, from a moderately hot 82.4°F (28°C) in September to a pleasant 70.7°F (21.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another refreshing month in Sulphur Rock, Arkansas, with temperature in the range of an average high of 57.4°F (14.1°C) and an average low of 42.1°F (5.6°C). The onset of November coincides with a reduction in the average high-temperature, falling from a pleasant 70.7°F (21.5°C) in October to a mild 57.4°F (14.1°C). Weather in November »Weather in December
December, the first month of the winter in Sulphur Rock, is still a chilly month, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 35.8°F (2.1°C). A mild drop in Sulphur Rock's average high-temperature is observed in December, transitioning from a moderate 57.4°F (14.1°C) in November to a chilly 48.7°F (9.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Sulphur Rock, AR
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (45.1°F).
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure
Sulphur Rock, AR
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.01"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 (29.93"Hg).
Average wind speed
Sulphur Rock, AR
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.8mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.5mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Sulphur Rock, AR
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Sulphur Rock, AR
- Average rainfall in January:
2.68" - Average rainfall in February:
3.07" - Average rainfall in March:
3.46" - Average rainfall in April:
4.8" - Average rainfall in May:
4.53" - Average rainfall in June:
2.87"
- Average rainfall in July:
3.46" - Average rainfall in August:
3.39" - Average rainfall in September:
2.28" - Average rainfall in October:
2.64" - Average rainfall in November:
2.95" - Average rainfall in December:
2.76"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days
Sulphur Rock, AR
- Average rainfall days in January:
9 days - Average rainfall days in February:
10.7 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9 days).
Average snowfall
Sulphur Rock, AR
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Sulphur Rock, AR
- Average snowfall days in January:
2.2 days - Average snowfall days in February:
1.8 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.1 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:
0.9 days - Average snowfall days in December:
0.9 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Sulphur Rock, AR
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
Sulphur Rock, AR
- Average sunshine days in January:
19 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
13 days - Average sunshine days in April:
14 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
13.6 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
11.5 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
19.1 days
The months with the most sunshine days are November and December (19.1 days).
The month with the least sunshine days is July (11.1 days).
Average UV index
Sulphur Rock, AR
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Sulphur Rock, AR
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility
Sulphur Rock, AR
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).





