McKinney, TX weather in March
March in McKinney: mild, with some rain. Highs 68°F, lows 46°F, about 8 days with rain. A good month for most outdoor plans.
- Normal high
- 68°F
- Normal low
- 46°F
- Wet days
- 8
- 3.8 in total
- Muggy days
- 0
- dew point 65°F+
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 63°F | 72°F |
| Normal low | 42°F | 49°F |
| Chance of a wet day | 27% | 26% |
| Sunrise / sunset | 6:54 am / 6:23 pm | 7:15 am / 7:45 pm |
| Daylight | 11.5 h | 12.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical March day
- 6 am51°Fdew point 44°F
- 9 am56°Fdew point 45°F
- Noon63°Fdew point 44°F
- 3 pm67°Fdew point 44°F
- 6 pm65°Fdew point 44°F
- 9 pm59°Fdew point 45°F
NOAA hourly normals (local standard time) from Dallas Ft Worth Airport (31 mi away); average wind 12 mph; clear or few clouds in 35% of daytime hours, mostly cloudy or overcast in 55%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below3 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain and snow in March
Normal precipitation is 3.8 in; a dry March brings about 2.4 in and a wet one about 4.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 0.4 in.
How March varies from year to year
- Warmest March, 1991-20202012: average high 74°F
- Coolest March2001: average high 60°F
- Wettest March2020: 10.0 in
- Driest March2011: 0.1 in
- Highest reading89°F (March 1, 2006)
- Lowest reading13°F (March 3, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 60°F | 68°F | 75°F |
| Normal low | 38°F | 46°F | 53°F |
| Wet days | 8 | 8 | 7 |
| Comfortable days | 10 | 16 | 15 |
| Daylight | 11.0 h | 12.0 h | 13.0 h |
Highs change by +8°F from February and +7°F into April.
Nearby alternatives in March
- Warmer: College Station, TX178 mi · high 73°F · 8 wet days
- Cooler: Fayetteville, AR242 mi · high 61°F · 11 wet days
How McKinney ranks in March
- Normal high131st warmest of 378 cities; 37th of 38 in Texas
- Wet days161st driest of 378
- Comfortable days74th most of 339
What to pack for McKinney in March
- A rain jacket or umbrella – rain on about 8 days
Frost in March
The last spring frost typically comes around Mar 18; in 1 year in 10 it comes after Apr 7. All frost dates for McKinney.
Heating and cooling
March has 289 heating degree days and 25 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How cold is McKinney in March?
The normal high is 68°F and the normal low is 46°F. From 1991 to 2020 the coldest March reading was 13°F (March 3, 2002).
Does it rain a lot in McKinney in March?
About 8 days in March have at least 0.01 in of precipitation, and the normal total is 3.8 in. The wettest March in 1991-2020 was in 2020 (10.0 in); the driest was in 2011 (0.1 in).
Does it snow in McKinney in March?
Yes. Normal snowfall in March is 0.4 in.
Is March a good time to visit McKinney?
March ranks 2nd of 12 months on our comfort score for McKinney (68 out of 100). It has about 16 comfortable days. The best months are March and April.
Where the numbers come from
- Temperature and frost dates: Mckinney Muni Airport (USW00053914), 1.9 mi SE of the city center, 580 ft (50 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Rain, snowfall and snow depth: Frisco (USC00413370), 10 mi W of the city center, 747 ft (117 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Dallas Ft Worth Airport (USW00003927), 31 mi SW of the city center, 560 ft (70 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Dallas/Ft Worth International Airport (722590-03927), 31 mi SW of the city center, 544 ft (86 ft lower than the city). Hourly observations, 1991-2020.