Climate and monthly weather forecastHamlin, IA
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Hamlin, Iowa, with an average temperature varying between 14.2°F (-9.9°C) and 27.5°F (-2.5°C). In Hamlin, Iowa, January records the lowest average temperatures, peaking at 27.5°F (-2.5°C) and reaching a low of 14.2°F (-9.9°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Hamlin, Iowa, with an average temperature ranging between min 17.4°F (-8.1°C) and max 31.5°F (-0.3°C). Hamlin experiences an average high-temperature of a still subzero cold 31.5°F (-0.3°C) with the onset of February, subtly varied from January's 27.5°F (-2.5°C). Weather in February »Weather in March
March, the first month of the spring in Hamlin, is a chilly month, with an average temperature fluctuating between 46.8°F (8.2°C) and 31.1°F (-0.5°C). With the onset of March, Hamlin experiences a distinct temperature rise, with the average high-temperature advancing from February's subzero cold 31.5°F (-0.3°C) to a frosty 46.8°F (8.2°C). Weather in March »Weather in April
April in Hamlin, Iowa, is a mild spring month, with an average temperature fluctuating between 58.6°F (14.8°C) and 42.1°F (5.6°C). April marks a rise in the average high-temperature, moving from March's chilly 46.8°F (8.2°C) to a mild 58.6°F (14.8°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Hamlin, Iowa, with an average temperature ranging between max 68.9°F (20.5°C) and min 52.7°F (11.5°C). May brings a temperature increase, with average high-temperatures moving from April's mild 58.6°F (14.8°C) to a pleasant 68.9°F (20.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Hamlin, Iowa, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 79°F (26.1°C). The start of June signals an increase in the average high-temperature, moving from a pleasant 68.9°F (20.5°C) in May to a moderately hot 79°F (26.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Hamlin, Iowa, with an average temperature ranging between min 64.8°F (18.2°C) and max 82°F (27.8°C). Hamlin's warmest month, July, registers temperatures that range from a high of 82°F (27.8°C) to a low of 64.8°F (18.2°C). During July, the heat index is estimated at a tropical 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Hamlin, Iowa, with an average temperature varying between 62.1°F (16.7°C) and 79.9°F (26.6°C). Hamlin's average high-temperature marks a still warm 79.9°F (26.6°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 Hamlin, is still a warm month, with an average temperature ranging between min 55.9°F (13.3°C) and max 74.7°F (23.7°C). The ushering in of September brings an average high-temperature of a still warm 74.7°F (23.7°C), closely mirroring the 79.9°F (26.6°C) of August. Weather in September »Weather in October
October, like September, is another refreshing autumn month in Hamlin, Iowa, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 43.7°F (6.5°C). Hamlin witnesses a significant decrease in the average high-temperature with the arrival of October, falling from September's moderately hot 74.7°F (23.7°C) to a refreshing 59.5°F (15.3°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Hamlin, Iowa, with an average temperature varying between 31.8°F (-0.1°C) and 45.9°F (7.7°C). In November, the meteorological conditions alter, with the average high-temperature shifting from a refreshing 59.5°F (15.3°C) in October to a frosty 45.9°F (7.7°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Hamlin, Iowa, with an average temperature ranging between min 20.8°F (-6.2°C) and max 32.4°F (0.2°C). December comes with a drop in the average high-temperature, falling from November's chilly 45.9°F (7.7°C) to a wintry 32.4°F (0.2°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Hamlin, IA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.5°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure
Hamlin, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"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:
29.88"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"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 (29.88"Hg).
Average wind speed
Hamlin, IA
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.4mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity
Hamlin, IA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Hamlin, IA
- Average rainfall in January:
0.75" - Average rainfall in February:
0.98" - Average rainfall in March:
1.46" - Average rainfall in April:
2.4" - Average rainfall in May:
3.62" - Average rainfall in June:
4.02"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.72" - Average rainfall in September:
2.56" - Average rainfall in October:
1.81" - Average rainfall in November:
0.94" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days
Hamlin, IA
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
5 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall
Hamlin, IA
- Average snowfall in January:
2.83" - Average snowfall in February:
3.43" - Average snowfall in March:
2.09" - Average snowfall in April:
0.75" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Hamlin, IA
- Average snowfall days in January:
10 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
1.8 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:
0.7 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
8.2 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hamlin, IA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Hamlin, IA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
13 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
19.8 days - Average sunshine days in December:
19 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Hamlin, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Hamlin, IA
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Hamlin, IA
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





