Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, in Harlingen, Texas, is an agreeable winter month, with an average temperature ranging between max 68.7°F (20.4°C) and min 55.4°F (13°C). With an average high-temperature of 68.7°F (20.4°C) and an average low-temperature of 55.4°F (13°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Harlingen, is also an agreeable month, with an average temperature ranging between max 73.2°F (22.9°C) and min 59.5°F (15.3°C). The introduction of February notes a subtle temperature variation to a still agreeable 73.2°F (22.9°C) from January's 68.7°F (20.4°C). Weather in February »
Weather in March
The first month of the spring, March, is a warm month in Harlingen, Texas, with an average temperature varying between 64.2°F (17.9°C) and 78.8°F (26°C). As Harlingen welcomes March, the average high-temperature displays a subtle shift, adjusting from an agreeable 73.2°F (22.9°C) in February to a moderately hot 78.8°F (26°C). Weather in March »
Weather in April
April, the same as March, is a moderately hot spring month in Harlingen, Texas, with an average temperature varying between 69.1°F (20.6°C) and 84.7°F (29.3°C). The onset of April introduces a subtle rise in the average high-temperature, nudging from 78.8°F (26°C) in March to a still moderately hot 84.7°F (29.3°C). Weather in April »
Weather in May
May, the last month of the spring in Harlingen, is a hot month, with an average temperature ranging between min 73.2°F (22.9°C) and max 88.3°F (31.3°C). As Harlingen welcomes May, the average high-temperature stabilizes at a hot 88.3°F (31.3°C), showing little deviation from April's 84.7°F (29.3°C). Weather in May »
Weather in June
June, the first month of the summer in Harlingen, is also a hot month, with an average temperature varying between 92.1°F (33.4°C) and 77.4°F (25.2°C). Harlingen, Texas, registers an average high-temperature of a still tropical 92.1°F (33.4°C) at the commencement of June, closely related to the preceding month. Weather in June »
Weather in July
July, the same as June, in Harlingen, Texas, is a hot summer month, with an average temperature ranging between min 78.3°F (25.7°C) and max 93.7°F (34.3°C). The arrival of July brings an average high-temperature of a still hot 93.7°F (34.3°C), nearly identical to June's 92.1°F (33.4°C). Weather in July »
Weather in August
The last month of the summer, August, is a torrid month in Harlingen, Texas, with an average temperature varying between 95°F (35°C) and 80.1°F (26.7°C). Harlingen records the warmest temperatures in August, averaging a high of 95°F (35°C) and a low of 80.1°F (26.7°C). The heat index value during August is estimated at a burning hot 118.4°F (48°C). Weather in August »
Weather in September
September, the first month of the autumn in Harlingen, is also a hot month, with an average temperature varying between 90.5°F (32.5°C) and 78.1°F (25.6°C). The average high-temperature for September is a tropical 90.5°F (32.5°C), closely aligning with the temperature of the preceding month. Weather in September »
Weather in October
October, like September, in Harlingen, Texas, is another warm autumn month, with an average temperature ranging between min 71.8°F (22.1°C) and max 85.1°F (29.5°C). During the shift to October, Harlingen records a mild decrease in average high-temperature, moving from a hot 90.5°F (32.5°C) in September to a warm 85.1°F (29.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another warm month in Harlingen, Texas, with an average temperature ranging between min 63.7°F (17.6°C) and max 76.5°F (24.7°C). With the onset of November, Harlingen's average high-temperature slightly adjusts, moderately receding from October's warm 85.1°F (29.5°C) to a still moderately hot 76.5°F (24.7°C). Weather in November »
Weather in December
December, the first month of the winter in Harlingen, is also an agreeable month, with an average temperature ranging between max 70.7°F (21.5°C) and min 58.1°F (14.5°C). A mild shift in the average high-temperature occurs in December, reducing from a moderately hot 76.5°F (24.7°C) in November to an agreeable 70.7°F (21.5°C). Weather in December »
Updated: Jul 21, 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
What time of the year is the coldest?
In Harlingen, the average lowest temperatures are observed in January, with a high of 68.7°F (20.4°C) and a low of 55.4°F (13°C).
How much does it rain?
Throughout the year, there are 79.8 rainfall days, and 5.24" (133mm) of precipitation is accumulated.
When it does not snow?
January, March through December are months without snowfall.
How many days does it snow in Harlingen?
Throughout the year, there are 0.1 snowfall days.
What is the driest month?
February is the month with the least rainfall in Harlingen. Rain falls for 4.7 days and accumulates 0.16" (4mm) of precipitation.
When does it snow?
The only month with snowfall is February.
When does it snow the most?
The month with the most snowfall days is February, when snow falls for 0.1 days.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Harlingen, 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.
What is the most humid month?
The most humid month is May, with an average relative humidity of 73%.
When are the longest days?
With an average of 13h and 48min of daylight, June has the longest days of the year.
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 6 days and typically aggregates up to 0.87" (22mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.4h of sunshine.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 8.
What month is the hottest?
In Harlingen, August is known for its average highest temperatures, reaching a high of 95°F (35°C) and a low of 80.1°F (26.7°C).
What is the least humid month?
August is the least humid month, with an average relative humidity of 65%.
What is the month with the shortest days?
With an average of 10h and 30min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 5.1h of sunshine.
What is the month with the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 4.
Average temperature
Harlingen, TX
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (68.7°F).
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (55.4°F).
Average pressure
Harlingen, TX
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.91"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Harlingen, TX
- Average wind speed in January:
10.4mph - Average wind speed in February:
11.4mph - Average wind speed in March:
12.1mph - Average wind speed in April:
12.1mph - Average wind speed in May:
11.9mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
11.2mph - Average wind speed in August:
10.2mph - Average wind speed in September:
8.9mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.5mph
The windiest months (with the highest average wind speed) are March and April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).
Average humidity
Harlingen, TX
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (65%).
Average rainfall
Harlingen, TX
- Average rainfall in January:
0.35" - Average rainfall in February:
0.16" - Average rainfall in March:
0.31" - Average rainfall in April:
0.2" - Average rainfall in May:
0.39" - Average rainfall in June:
0.67"
- Average rainfall in July:
0.87" - Average rainfall in August:
0.31" - Average rainfall in September:
0.63" - Average rainfall in October:
0.79" - Average rainfall in November:
0.31" - Average rainfall in December:
0.24"
The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is February (0.16").
Average rainfall days
Harlingen, TX
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
5.5 days - Average rainfall days in May:
6.8 days - Average rainfall days in June:
7.9 days
- Average rainfall days in July:
6 days - Average rainfall days in August:
6 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
5.8 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is September (11.5 days).
The month with the least rainy days is February (4.7 days).
Average snowfall days
Harlingen, TX
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 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 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Harlingen, TX
- Average daylight in January:
10h and 4min - Average daylight in February:
11h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 2min - Average daylight in June:
13h and 5min
- Average daylight in July:
13h and 4min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 3min - Average daylight in November:
10h and 5min - Average daylight in December:
10h and 3min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
7h and 1min - Average sunshine in March:
7h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
11h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
7h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Harlingen, TX
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
21.4 days - Average sunshine days in March:
23.3 days - Average sunshine days in April:
23.1 days - Average sunshine days in May:
22.7 days - Average sunshine days in June:
19.5 days
- Average sunshine days in July:
23 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
21.4 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
22.9 days
The month with the most sunshine days is March (23.3 days).
The month with the least sunshine days is September (15.6 days).
Average UV index
Harlingen, TX
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover
Harlingen, TX
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility
Harlingen, 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).