Climate averages 1991–2020
Cary weather
in March.
A mild, wet month: the 8th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a mild month in Cary: daytime highs average 15.7°C and nights cool to about 5.3°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 104 mm of rain on roughly 10 days, which makes March a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.
The nearest other city in this atlas is Raleigh (13 km away). In March its highs average 16.0°C, about as warm as Cary, with 104 mm of rain.
Among the 498 cities listed in the United States, Cary ranks joint 258th of 498 for the warmest March highs and joint 377th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Cary is 0.7°C warmer than that mean.
From March to April, average highs rise by 5.4°C to 21.0°C, and monthly rainfall falls from 104 mm to 90 mm.
The annual picture
March 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
Cary climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.5°C0.9°C | 0.9°C | 93 | 9.3 | 10.010 h |
| February | 11.6°C2.0°C | 2.0°C | 81 | 9.1 | 10.911 h |
| March, selected | 15.7°C5.3°C | 5.3°C | 104 | 10.3 | 11.912 h |
| April | 21.0°C10.3°C | 10.3°C | 90 | 9.1 | 13.113 h |
| May | 25.3°C15.2°C | 15.2°C | 90 | 10.4 | 14.014 h |
| June | 29.2°C19.7°C | 19.7°C | 103 | 12.1 | 14.515 h |
| July | 31.0°C22.0°C | 22.0°C | 116 | 15.2 | 14.314 h |
| August | 29.8°C21.1°C | 21.1°C | 111 | 12.4 | 13.514 h |
| September | 26.6°C18.2°C | 18.2°C | 120 | 10.2 | 12.412 h |
| October | 21.2°C12.1°C | 12.1°C | 79 | 7.2 | 11.311 h |
| November | 15.5°C6.4°C | 6.4°C | 85 | 7.7 | 10.310 h |
| December | 11.2°C2.7°C | 2.7°C | 90 | 9.1 | 9.810 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
March in nearby cities
- Raleigh in MarchUnited States · 13 kmHigh 16.0°C · Low 5.5°C · 104 mm rain
- Durham in MarchUnited States · 25 kmHigh 15.8°C · Low 4.6°C · 108 mm rain
- Fayetteville in MarchUnited States · 83 kmHigh 17.3°C · Low 6.4°C · 94 mm rain
- Greensboro in MarchUnited States · 96 kmHigh 14.9°C · Low 4.0°C · 108 mm rain
- High Point in MarchUnited States · 112 kmHigh 14.9°C · Low 4.0°C · 110 mm rain
- Greenville in MarchUnited States · 129 kmHigh 16.6°C · Low 6.0°C · 93 mm rain
- Winston-Salem in MarchUnited States · 136 kmHigh 14.9°C · Low 3.8°C · 108 mm rain
- Concord (North Carolina), United States in MarchUnited States · 168 kmHigh 16.1°C · Low 5.5°C · 107 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 Cary) is explained once on the Cary year overview and on the Sources, method and limits page.
Raleigh lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.