Climate averages 1991–2020
Pasadena (Texas), United States weather
in January.
A mild, wet month: the coolest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a mild month in Pasadena (Texas), United States: daytime highs average 16.8°C and nights cool to about 7.9°C. By daytime temperature it is the coolest month of the year.
Expect about 106 mm of rain on roughly 10 days, which makes January a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 28 min on an average January day.
The nearest other city in this atlas is Pearland (16 km away). In January its highs average 17.0°C, about as warm as Pasadena (Texas), United States, with 101 mm of rain.
Among the 498 cities listed in the United States, Pasadena (Texas), United States ranks joint 105th of 498 for the warmest January highs and joint 433rd of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Pasadena (Texas), United States is 7.3°C warmer than that mean.
From January to February, average highs rise by 1.9°C to 18.7°C, and monthly rainfall falls from 106 mm to 84 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Pasadena (Texas), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 16.8°C7.9°C | 7.9°C | 106 | 10.0 | 10.510 h |
| February | 18.7°C9.7°C | 9.7°C | 84 | 9.1 | 11.111 h |
| March | 21.8°C12.9°C | 12.9°C | 94 | 9.2 | 12.012 h |
| April | 25.2°C16.3°C | 16.3°C | 96 | 8.9 | 12.913 h |
| May | 28.9°C20.6°C | 20.6°C | 90 | 9.8 | 13.614 h |
| June | 31.5°C23.7°C | 23.7°C | 113 | 12.7 | 14.014 h |
| July | 32.6°C24.6°C | 24.6°C | 91 | 12.7 | 13.914 h |
| August | 33.0°C24.6°C | 24.6°C | 98 | 13.2 | 13.213 h |
| September | 30.6°C22.3°C | 22.3°C | 118 | 11.8 | 12.412 h |
| October | 26.7°C17.7°C | 17.7°C | 105 | 8.7 | 11.511 h |
| November | 21.4°C12.5°C | 12.5°C | 103 | 8.3 | 10.711 h |
| December | 17.7°C9.0°C | 9.0°C | 105 | 9.6 | 10.310 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Pearland in JanuaryUnited States · 16 kmHigh 17.0°C · Low 8.0°C · 101 mm rain
- Houston in JanuaryUnited States · 17 kmHigh 16.7°C · Low 7.5°C · 106 mm rain
- Baytown in JanuaryUnited States · 23 kmHigh 16.6°C · Low 7.8°C · 109 mm rain
- League City in JanuaryUnited States · 23 kmHigh 16.6°C · Low 8.7°C · 103 mm rain
- Missouri City in JanuaryUnited States · 33 kmHigh 17.0°C · Low 7.9°C · 98 mm rain
- Sugar Land in JanuaryUnited States · 42 kmHigh 17.0°C · Low 7.8°C · 92 mm rain
- Cypress in JanuaryUnited States · 56 kmHigh 16.4°C · Low 7.2°C · 95 mm rain
- The Woodlands in JanuaryUnited States · 59 kmHigh 16.1°C · Low 7.0°C · 100 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Pasadena) is explained once on the Pasadena (Texas), United States year overview and on the Sources, method and limits page.
Houston lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.