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Corsicana climate
Typical historical weather for Corsicana, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Corsicana. Planning a garden? See the gardening & growing season planner.
Annual average
20.5°C
across all months
Warmest month
35.7°C
Aug average high
Coolest month
4.2°C
Jan average low
Annual rainfall
1094mm
total per year
Corsicana is typically hottest in August and coolest in January, a swing of about 31.5°C across the year. About 36% of annual rainfall falls in the three wettest months (May is typically wettest, July driest).
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
| Month | Avg high | Avg low | Rainfall | Wet days | Humidity | Wind | Cloud | Solar |
|---|---|---|---|---|---|---|---|---|
| Jan | 14.8°C · record 20.1–26.7°C | 4.2°C · record -10.4–0.5°C | 73mm | 7 | 65% | 3.9 m/s | 48% | 3 kWh/m² |
| Feb | 16.9°C · record 25.4–29.7°C | 6.4°C · record -16.3–2°C | 88mm | 9 | 69% | 4.2 m/s | 57% | 3.3 kWh/m² |
| Mar | 22.3°C · record 25.9–33.2°C | 11.6°C · record -5.1–6.6°C | 96mm | 10 | 65% | 4.3 m/s | 54% | 4.5 kWh/m² |
| Apr | 24.8°C · record 29.4–33°C | 14.4°C · record 2.8–8.2°C | 142mm | 10 | 68% | 4.3 m/s | 55% | 5.1 kWh/m² |
| May | 28.8°C · record 32–36.5°C | 19.4°C · record 7.8–16.6°C | 155mm | 13 | 72% | 3.8 m/s | 59% | 5.6 kWh/m² |
| Jun | 33.1°C · record 35.1–39.5°C | 23.7°C · record 16.3–22.7°C | 92mm | 11 | 69% | 3.4 m/s | 49% | 6.4 kWh/m² |
| Jul | 35.3°C · record 36.6–43°C | 25.2°C · record 18.7–23.6°C | 61mm | 8 | 63% | 3.4 m/s | 51% | 6.7 kWh/m² |
| Aug | 35.7°C · record 38.3–43.1°C | 25.2°C · record 20.1–24.4°C | 77mm | 8 | 61% | 3 m/s | 46% | 6.1 kWh/m² |
| Sep | 32.8°C · record 35.4–42.1°C | 22°C · record 10.7–22.8°C | 63mm | 8 | 63% | 2.9 m/s | 41% | 5.2 kWh/m² |
| Oct | 27.6°C · record 32.1–36.2°C | 16°C · record 0–8.7°C | 100mm | 7 | 62% | 3.5 m/s | 36% | 4.2 kWh/m² |
| Nov | 21.1°C · record 26.9–31.2°C | 10.3°C · record -4–3.2°C | 73mm | 8 | 68% | 3.7 m/s | 48% | 3 kWh/m² |
| Dec | 17.2°C · record 23.8–28.6°C | 7°C · record -11.4–1.3°C | 75mm | 8 | 68% | 3.7 m/s | 53% | 2.5 kWh/m² |
"Avg high"/"Avg low" is the mean daily high/low for that month, averaged across every year on file. The "record" figure alongside it is a different statistic — the single hottest (or coldest) hour ever recorded during that month across all years — so it can sit above or below the average and does not describe the average's year-to-year spread. A "wet day" is any day with at least 1.0mm of rain.
Year to year
Annual average temperature, 2016–2025.
Across these 10 years, the annual average has moved by about +0.89°C per decade. That’s a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
Annual rainfall has moved by about -156.4mm per decade over the same period.
2025 (the most recent year on file) averaged 20.98930732343841°C, above the 9-year baseline of 20.46°C by 1.15 standard deviations.
Typical extremes per year
Rainy days
108 days
≥1.0mm rain
Heavy rain days
13.8 days
≥20mm rain
Extreme heat days
3.8 days
daily high ≥40°C
Frost days
14 days
daily low ≤0°C
Averaged across 10 years on file. Thresholds match PastClimate's data pipeline definitions — see data & sources.
Records on file
Ranked across 10 years of data currently on file (2016–2025).
Hottest day
43.1°C
20 August 2023
2023 was 1.5 SD above the 9-year average that year
Coldest day
-16.3°C
16 February 2021
2021 was 0.34 SD below the 9-year average that year
Wettest day
117.3mm
7 August 2017
2017 was 0.79 SD above the 9-year average that year
Windiest day
9.2m/s
15 January 2022
2022 was 0.27 SD above the 9-year average that year
See the detail: Corsicana on 7 August 2017.
Nearby cities
Mexia
27.8 km away
Ennis
36.4 km away
Gun Barrel City
36.4 km away
Teague
36.5 km away
Fairfield
36.5 km away
Tool
36.4 km away
Want a side-by-side view instead? Compare Corsicana with another city.
Frequently asked questions about Corsicana's climate
What is the hottest month in Corsicana?
August is typically the warmest month in Corsicana, with an average high of 35.7°C. January is typically the coolest, averaging 4.2°C overnight.
How much does it rain in Corsicana?
Corsicana gets about 1094mm of rain a year on average, with roughly 36% of it falling in the three wettest months (May is typically the wettest, July the driest).
How many extremely hot or cold days does Corsicana have?
On average, Corsicana sees about 3.8 day(s) a year at or above 40°C and about 14 day(s) at or below 0°C, based on 10 years of data.
Is Corsicana getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.89°C per decade. That's a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
What is the hottest day on record for Corsicana?
The hottest day on file is 20 August 2023 at 43.1°C, out of 10 year(s) searched.
Data & provenance
↓ Download monthly CSVData source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for United States
- Location
- Corsicana — 32.000°, -96.500°, ERA5 grid cell center, 11.0 km from requested point
- Time zone
- America/Chicago
- What's shown here
- Monthly and annual averages, and dated extreme-value records, derived from an hourly base record.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-17). Historical climate data for Corsicana, United States (32.00°N, 96.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Corsicana, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Corsicana, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Corsicana, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.