Climate and monthly weather forecastJamaica, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Jamaica, Iowa, is another subzero cold winter month, with an average temperature ranging between max 27.1°F (-2.7°C) and min 14°F (-10°C). Jamaica's January weather reaches an average high of 27.1°F (-2.7°C) and an average low of 14°F (-10°C), making it the coldest month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Jamaica, Iowa, with an average temperature varying between 30.9°F (-0.6°C) and 17.2°F (-8.2°C). The advent of February sees the average high-temperature at a still freezing cold 30.9°F (-0.6°C), subtly shifted from January's 27.1°F (-2.7°C). Weather in February »Weather in March
March, the first month of the spring in Jamaica, is a chilly month, with an average temperature fluctuating between 46.4°F (8°C) and 31.5°F (-0.3°C). As Jamaica transitions into March, a marked increase in the average high-temperature is observed, rising from a subzero cold 30.9°F (-0.6°C) in February to a chilly 46.4°F (8°C). Weather in March »Weather in April
April is a refreshing spring month in Jamaica, Iowa, with an average temperature varying between 58.8°F (14.9°C) and 42.1°F (5.6°C). The arrival of April brings a temperature shift, with the average high-temperature escalating from a frosty 46.4°F (8°C) in March to a mild 58.8°F (14.9°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Jamaica, Iowa, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 52.9°F (11.6°C). An increase in the average high-temperature marks May, moving from April's refreshing 58.8°F (14.9°C) to a pleasant 69.6°F (20.9°C). Weather in May »Weather in June
June, the first month of the summer in Jamaica, is a moderately hot month, with an average temperature fluctuating between 62.8°F (17.1°C) and 79.3°F (26.3°C). The shift from May to June is marked by an increase in the average high-temperature, moving from an agreeable 69.6°F (20.9°C) to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Jamaica, Iowa, with an average temperature fluctuating between 64.9°F (18.3°C) and 82°F (27.8°C). The warmest period is July, when temperatures fluctuate between an average high of 82°F (27.8°C) and a low of 64.9°F (18.3°C). For most parts of July, the heat index is appraised at a tropical 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Jamaica, Iowa, with an average temperature ranging between max 80.4°F (26.9°C) and min 62.2°F (16.8°C). The advent of August reveals an average high-temperature of a still warm 80.4°F (26.9°C), showing minimal difference from the prior month. Weather in August »Weather in September
September, the first month of the autumn in Jamaica, is still a warm month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 75.4°F (24.1°C). Entering September, Jamaica's average high-temperature reads a still moderately hot 75.4°F (24.1°C), indicating a close resemblance to the previous month's climate. Weather in September »Weather in October
October, like September, is another mild autumn month in Jamaica, Iowa, with an average temperature ranging between max 60.4°F (15.8°C) and min 44.2°F (6.8°C). With the onset of October, Jamaica experiences a distinct temperature drop, with the average high-temperature reducing from September's moderately hot 75.4°F (24.1°C) to a moderate 60.4°F (15.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Jamaica, Iowa, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 46.6°F (8.1°C). The start of November signals a decrease in the average high-temperature, transitioning from a moderate 60.4°F (15.8°C) in October to a frosty 46.6°F (8.1°C). Weather in November »Weather in December
December, the first month of the winter in Jamaica, is still a cold month, with an average temperature varying between 21.4°F (-5.9°C) and 32.9°F (0.5°C). The shift to December brings a decrease in the average high-temperature, falling from a chilly 46.6°F (8.1°C) in November to a wintry 32.9°F (0.5°C). Weather in December »Updated: Jun 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest month in Jamaica is January, with an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 14°F (-10°C).
January is the most humid month, with an average relative humidity of 83%.
January is the month with the least rainfall. Rain falls for 4.9 days and accumulates 0.91" (23mm) of precipitation.
Throughout the year, there are 131.7 rainfall days, and 26.65" (677mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
January is the month with the most snowfall. Snow falls for 10.8 days and accumulates 3.74" (95mm) of snow.
In Jamaica, during the entire year, snow falls for 37.2 days and aggregates up to 13.35" (339mm) of snow.
With an average of 4.2h of sunshine, January has the least sunshine of the year.
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 4.17" (106mm) of precipitation.
In Jamaica, snow does not fall in June through September.
The month with the longest days is June, with an average of 15h and 12min of daylight.
June and July, with an average maximum UV index of 6, are months with the highest UV index in Jamaica, Iowa.
July, characterized by an average high temperature of 82°F (27.8°C) and a low temperature of 64.9°F (18.3°C), is generally the warmest month.
July has the most sunshine of the year, with an average of 10.3h of sunshine.
The least humid month in Jamaica is October, with an average relative humidity of 69%.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Jamaica, IA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.1°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure
Jamaica, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"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:
30.01"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"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
Jamaica, IA
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.4mph - 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 (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Jamaica, IA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Jamaica, IA
- Average rainfall in January:
0.91" - Average rainfall in February:
0.98" - Average rainfall in March:
1.69" - Average rainfall in April:
2.72" - Average rainfall in May:
4.17" - Average rainfall in June:
3.9"
- Average rainfall in July:
2.2" - Average rainfall in August:
2.48" - Average rainfall in September:
2.95" - Average rainfall in October:
2.17" - Average rainfall in November:
1.22" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Jamaica, IA
- Average rainfall days in January:
4.9 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (3.8 days).
Average snowfall
Jamaica, IA
- Average snowfall in January:
3.74" - Average snowfall in February:
3.66" - Average snowfall in March:
1.69" - Average snowfall in April:
0.43" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Jamaica, IA
- Average snowfall days in January:
10.8 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
1.2 days - Average snowfall days in May:
0.3 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:
3.3 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Jamaica, 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 54min - 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 12min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Jamaica, IA
- Average sunshine days in January:
17.9 days - Average sunshine days in February:
16 days - Average sunshine days in March:
16 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
18.9 days
The months with the most sunshine days are October, November and December (18.9 days).
The month with the least sunshine days is June (10.6 days).
Average UV index
Jamaica, 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, October, November and December (UV index 2).
Average cloud cover
Jamaica, IA
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility
Jamaica, 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).
