Climate and monthly weather forecastAllen, TX
Climate and monthly weather forecast
Weather in January
January, like December, in Allen, Texas, is a cool winter month, with temperature in the range of an average low of 38.7°F (3.7°C) and an average high of 54°F (12.2°C). January stands out as Allen's coldest month, with an average high-temperature of 54°F (12.2°C) and a low-temperature of 38.7°F (3.7°C). Weather in January »Weather in February
The last month of the winter, February, is a refreshing month in Allen, Texas, with an average temperature fluctuating between 42.1°F (5.6°C) and 57.4°F (14.1°C). The commencement of February brings an average high-temperature of a refreshing 57.4°F (14.1°C), marking an inconsequential divergence from January. Weather in February »Weather in March
March, the first month of the spring in Allen, is a refreshing month, with an average temperature fluctuating between 49.6°F (9.8°C) and 66.7°F (19.3°C). March signals a shift in the average high-temperature, moving from February's mild 57.4°F (14.1°C) to an enjoyable 66.7°F (19.3°C). Weather in March »Weather in April
April in Allen, Texas, is a warm spring month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 55.9°F (13.3°C). Allen's weather shows a minor temperature rise with the arrival of April, moving from an enjoyable 66.7°F (19.3°C) in March to a moderately hot 73.9°F (23.3°C). Weather in April »Weather in May
May, the last month of the spring in Allen, is also a moderately hot month, with an average temperature ranging between min 64.2°F (17.9°C) and max 81.5°F (27.5°C). May brings a slight elevation in the average high-temperature, transitioning from April's 73.9°F (23.3°C) to a still warm 81.5°F (27.5°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Allen, Texas, with temperature in the range of an average high of 90.9°F (32.7°C) and an average low of 73.2°F (22.9°C). As June begins, there is an increase in the average high-temperature, moving from a warm 81.5°F (27.5°C) in May to a tropical 90.9°F (32.7°C). Weather in June »Weather in July
July, the same as June, in Allen, Texas, is a hot summer month, with an average temperature fluctuating between 94.5°F (34.7°C) and 76.1°F (24.5°C). As Allen transitions from June to July, the average high-temperatures adjust to a still hot 94.5°F (34.7°C), nearly the same as the previous 90.9°F (32.7°C). Weather in July »Weather in August
The last month of the summer, August, is a torrid month in Allen, Texas, with an average temperature ranging between max 95.5°F (35.3°C) and min 75.9°F (24.4°C). Allen experiences its highest temperatures in August, with an average peak of 95.5°F (35.3°C) and a low of 75.9°F (24.4°C). The heat index in August is evaluated at a scorching 111.2°F (44°C). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Allen, Texas, with an average temperature varying between 70°F (21.1°C) and 87.6°F (30.9°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a fiery hot 95.5°F (35.3°C) in August to a hot 87.6°F (30.9°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Allen, Texas, with an average temperature varying between 58.3°F (14.6°C) and 75.7°F (24.3°C). In October, the meteorological conditions alter, with the average high-temperature shifting from a hot 87.6°F (30.9°C) in September to a moderately hot 75.7°F (24.3°C). Weather in October »Weather in November
November, the last month of the autumn in Allen, is also an enjoyable month, with an average temperature varying between 48.2°F (9°C) and 63.9°F (17.7°C). Allen's weather in November involves a decrease in the average high-temperature, moving down from October's warm 75.7°F (24.3°C) to a comfortable 63.9°F (17.7°C). Weather in November »Weather in December
December, the first month of the winter in Allen, is also a fresh month, with an average temperature varying between 54.9°F (12.7°C) and 41.2°F (5.1°C). As December arrives, Allen's weather displays a decrease in high-temperatures, transitioning from November's enjoyable 63.9°F (17.7°C) to a cool 54.9°F (12.7°C). Weather in December »Updated: Jul 2, 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
January stands out as Allen's coldest month, with an average high-temperature of 54°F (12.2°C) and a low-temperature of 38.7°F (3.7°C).
The month with the least rainfall is January, when the rain falls for 7.1 days and typically collects 1.85" (47mm) of precipitation.
Throughout the year, in Allen, there are 143 rainfall days, and 33.15" (842mm) of precipitation is accumulated.
January, February, November and December are months with snowfall.
Throughout the year, there are 2.9 snowfall days, and 1.14" (29mm) of snow is accumulated.
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Allen.
February is the month with the most snowfall. Snow falls for 1.3 days and accumulates 0.71" (18mm) of snow.
March through October are months without snowfall.
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.
With an average relative humidity of 73%, May is the most humid month.
With an average of 14h and 18min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 7, are months with the highest UV index.
August is the month that records the highest temperatures, with averages ranging from a high of 95.5°F (35.3°C) to a low of 75.9°F (24.4°C).
August is the least humid month, with an average relative humidity of 56%.
August has the most sunshine of the year, with an average of 11h of sunshine.
October is the month with the most rainfall. Rain falls for 12.2 days and accumulates 4.21" (107mm) of precipitation.
With an average of 10h and 0min of daylight, December has the shortest days of the year.
With an average of 5.5h of sunshine, December has the least sunshine of the year.
Average temperature
Allen, TX
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54°F).
The month with the highest average low temperature is July (76.1°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure
Allen, TX
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"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 (29.91"Hg).
Average wind speed
Allen, TX
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.9mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.7mph - Average wind speed in December:
8.6mph
The windiest months (with the highest average wind speed) are March and April (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity
Allen, TX
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall
Allen, TX
- Average rainfall in January:
1.85" - Average rainfall in February:
1.89" - Average rainfall in March:
3.27" - Average rainfall in April:
2.95" - Average rainfall in May:
4.02" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.28" - Average rainfall in August:
2.56" - Average rainfall in September:
2.76" - Average rainfall in October:
4.21" - Average rainfall in November:
2.24" - Average rainfall in December:
2.2"
The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days
Allen, TX
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
14.5 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Allen, TX
The month with the highest snowfall is February (0.71").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days
Allen, TX
- Average snowfall days in January:
0.6 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
0.2 days - Average snowfall days in April:
0 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 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Allen, TX
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
6h and 36min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Allen, TX
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is April (13.9 days).
Average UV index
Allen, TX
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Allen, TX
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Allen, TX
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).
