Harlingen weather in April: Harlingen, Texas: normal highs, lows, rain and records for April
Harlingen in April has a normal high of 87°F and a normal low of 65°F, a daily mean of 76°F, rising from 84°F on the 1st to 89°F by the 30th. Measurable precipitation falls on 5 days in a normal April, 1.46 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 18°C, 37 mm of precipitation in April.
- NOAA stationHarlingen Rio Grande Airport
- Station IDUSW00012904
- Location26.23°N 97.65°W
- Elevation34 ft (10 m)
- Population72,234
- Jan 72° 50°
- Feb 76° 54°
- Mar 81° 59°
- Apr 87° 65°
- May 91° 71°
- Jun 95° 75°
- Jul 96° 75°
- Aug 97° 75°
- Sep 92° 73°
- Oct 88° 66°
- Nov 79° 57°
- Dec 73° 52°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Harlingen in April?
The normal high is 87°F and the normal low 65°F, for a daily mean of 75.8°F. April is 5.6°F warmer than March and 5.4°F cooler than May. April is the 7th warmest month of the year in Harlingen and the 8th wettest. Across the month the normal high rises 5°F, from 84°F on April 1 to 89°F on April 30. From one year to the next April's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 73°F and 78°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 17%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 84°F | 63°F | 17% | 6% |
| April 8 | 85°F | 64°F | 16% | 6% |
| April 15 | 87°F | 65°F | 16% | 6% |
| April 22 | 88°F | 66°F | 16% | 6% |
| April 30 | 89°F | 68°F | 16% | 6% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 84°F | 63°F | 17% | 6% | 12 h 20 min |
| April 2 | 84°F | 63°F | 17% | 6% | 12 h 30 min |
| April 3 | 85°F | 63°F | 17% | 6% | 12 h 30 min |
| April 4 | 85°F | 63°F | 17% | 6% | 12 h 30 min |
| April 5 | 85°F | 63°F | 17% | 6% | 12 h 30 min |
| April 6 | 85°F | 63°F | 16% | 6% | 12 h 30 min |
| April 7 | 85°F | 64°F | 16% | 6% | 12 h 30 min |
| April 8 | 85°F | 64°F | 16% | 6% | 12 h 30 min |
| April 9 | 86°F | 64°F | 16% | 6% | 12 h 40 min |
| April 10 | 86°F | 64°F | 16% | 6% | 12 h 40 min |
| April 11 | 86°F | 64°F | 16% | 6% | 12 h 40 min |
| April 12 | 86°F | 65°F | 16% | 6% | 12 h 40 min |
| April 13 | 86°F | 65°F | 16% | 6% | 12 h 40 min |
| April 14 | 86°F | 65°F | 16% | 6% | 12 h 40 min |
| April 15 | 87°F | 65°F | 16% | 6% | 12 h 50 min |
| April 16 | 87°F | 65°F | 15% | 6% | 12 h 50 min |
| April 17 | 87°F | 66°F | 16% | 6% | 12 h 50 min |
| April 18 | 87°F | 66°F | 16% | 6% | 12 h 50 min |
| April 19 | 87°F | 66°F | 16% | 6% | 12 h 50 min |
| April 20 | 87°F | 66°F | 15% | 6% | 12 h 50 min |
| April 21 | 87°F | 66°F | 16% | 6% | 12 h 50 min |
| April 22 | 88°F | 66°F | 16% | 6% | 13 h |
| April 23 | 88°F | 67°F | 16% | 6% | 13 h |
| April 24 | 88°F | 67°F | 16% | 6% | 13 h |
| April 25 | 88°F | 67°F | 16% | 6% | 13 h |
| April 26 | 88°F | 67°F | 16% | 6% | 13 h |
| April 27 | 88°F | 67°F | 16% | 6% | 13 h |
| April 28 | 88°F | 68°F | 16% | 6% | 13 h |
| April 29 | 89°F | 68°F | 16% | 6% | 13 h 10 min |
| April 30 | 89°F | 68°F | 16% | 6% | 13 h 10 min |
- Normal high
- 87°FApril average
- Normal low
- 65°FApril average
- Precipitation
- 1.46 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 11
- Daylight
- 12 h 20 min to 13 h 10 minApril 1 to April 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 26
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012904; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Harlingen in April?
On a given April day the chance of 0.01 inch or more is 16% on average, highest around April 1 (17%). In all, 1.46 in falls on 5 days of a normal April.
In a normal April in Harlingen, 11 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012904.
What are the records for April in Harlingen?
The warmest April temperature on this station's record (since 1952) is 106°F, on April 6, 2022; the coldest is 41°F, on April 8, 2007. The wettest April brought 5.55 in (1961).
The April mean against the 1991-2020 normal of 75.8°F: 2021 76.0°F (+0.2), 2022 79.2°F (+3.4), 2023 73.7°F (−2.1), 2024 77.1°F (+1.3), 2025 76.6°F (+0.8), 2026 77.2°F (+1.4). 5 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.0°F | +0.2°F | 0.29 in |
| 2022 | 79.2°F | +3.4°F | 1.37 in |
| 2023 | 73.7°F | −2.1°F | 3.66 in |
| 2024 | 77.1°F | +1.3°F | 1.00 in |
| 2025 | 76.6°F | +0.8°F | 0.89 in |
| 2026 | 77.2°F | +1.4°F | 2.94 in |
Source: records: ACIS, station USW00012904; recent months: ACIS, station USW00012904. Records and recent months use complete months only.
How does April in Harlingen compare across Texas?
Across the 321 places PlainClimate covers in Texas, April normal highs run from 70°F in Hartley to 90°F in Terlingua; Harlingen's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.