Robert Lee, Texas climate: Normal weather by month, frost dates and records
Robert Lee's normal year runs from 30°F January nights to 96°F July afternoons, with 21.4 inches of precipitation and less than an inch of snow (0.5 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.0°C, January lows of −1°C, July highs of 36°C, 544 mm of precipitation a year.
- NOAA stationRobert Lee (4 mi WSW)
- Station IDUSC00417669
- Location31.88°N 100.54°W
- Elevation1,914 ft (583 m)
- Population1,063
On October 22, the normal high in Robert Lee is 77°F and the normal low 48°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Robert Lee.
- Jan 58° 30°
- Feb 63° 34°
- Mar 70° 42°
- Apr 79° 50°
- May 87° 61°
- Jun 93° 68°
- Jul 96° 72°
- Aug 94° 71°
- Sep 87° 63°
- Oct 79° 51°
- Nov 67° 40°
- Dec 59° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Robert Lee each month?
July is the warmest month, with normal highs of 96°F; January the coldest, with normal lows of 30°F. The most precipitation falls in September (2.65 in), the least in December (0.95 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 58°F | 30°F | 43.9°F | 1.06 | 4 | <1 | 19 | 10 h 20 min |
| February | 63°F | 34°F | 48.7°F | 1.11 | 4 | <1 | 13 | 11 h |
| March | 70°F | 42°F | 55.9°F | 1.30 | 4 | 1 | 6 | 12 h |
| April | 79°F | 50°F | 64.9°F | 1.65 | 3 | 6 | 1 | 13 h |
| May | 87°F | 61°F | 73.8°F | 2.60 | 5 | 13 | <1 | 13 h 50 min |
| June | 93°F | 68°F | 80.4°F | 2.60 | 5 | 22 | <1 | 14 h 10 min |
| July | 96°F | 72°F | 84.1°F | 1.54 | 4 | 28 | <1 | 14 h |
| August | 94°F | 71°F | 82.5°F | 2.63 | 6 | 26 | <1 | 13 h 20 min |
| September | 87°F | 63°F | 75.1°F | 2.65 | 4 | 15 | <1 | 12 h 20 min |
| October | 79°F | 51°F | 64.9°F | 2.11 | 4 | 5 | 1 | 11 h 30 min |
| November | 67°F | 40°F | 53.4°F | 1.23 | 4 | <1 | 6 | 10 h 30 min |
| December | 59°F | 31°F | 45.2°F | 0.95 | 3 | <1 | 17 | 10 h 10 min |
| Year (annual) | 78°F | 51°F | 64.4°F | 21.43 | 49 | 115 | 63 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | −1°C | 6.6°C | 27 mm |
| February | 17°C | 1°C | 9.3°C | 28 mm |
| March | 21°C | 5°C | 13.3°C | 33 mm |
| April | 26°C | 10°C | 18.3°C | 42 mm |
| May | 31°C | 16°C | 23.2°C | 66 mm |
| June | 34°C | 20°C | 26.9°C | 66 mm |
| July | 36°C | 22°C | 28.9°C | 39 mm |
| August | 35°C | 22°C | 28.1°C | 67 mm |
| September | 31°C | 17°C | 23.9°C | 67 mm |
| October | 26°C | 10°C | 18.3°C | 54 mm |
| November | 19°C | 4°C | 11.9°C | 31 mm |
| December | 15°C | 0°C | 7.3°C | 24 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00417669; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Robert Lee?
Normal highs sit between 65°F and 85°F in March, April, October and November. Of those, April has the fewest days with rain (3).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00417669.
When is the last frost in Robert Lee?
In Robert Lee, the last spring frost (32°F) comes after March 26 in half of years and after April 12 in one year in ten; the first autumn frost comes before November 7 in half of years and before October 24 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 261 year in 10 after April 12; 9 in 10 after March 7
- First autumn frost, half of years before
- November 71 year in 10 before October 24; 9 in 10 before November 23
NOAA puts the median frost-free season at 226 days, and the season without a hard freeze (28°F) at 252 days.
A hard freeze (28°F) comes after March 12 in half of springs and before November 17 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Robert Lee in zone 8a in ZIP code 76945, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Robert Lee's NOAA station is in zone 8a: the coldest night of a typical year reaches 13°F (16 complete years).
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00417669; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Robert Lee?
In a normal year in Robert Lee, 115 days a year reach 90°F (25 of them 100°F or more), 63 nights fall to 32°F or colder and 49 days bring measurable precipitation.
- Days at 90°F or more
- 115a normal year
- Days at 100°F or more
- 25a normal year
- Nights at 32°F or colder
- 63a normal year
- Days that stay below freezing
- 2high of 32°F or less
- Days with 0.01 inch of precipitation
- 49a normal year
The highest temperature in this station's record (since 1908) is 114°F, on May 25, 2000; the lowest is −2°F, on December 24, 1989.
The wettest calendar year on that record is 1986, with 37.59 in; the snowiest season is 1981–82, with 4.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00417669; records: ACIS (NOAA Regional Climate Centers), station USC00417669. Records use complete months only; a month missing more than three days is left out.
How sunny is Robert Lee?
Over a year 84% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Robert Lee, 5.2 kWh per square metre a day. June is the sunniest month (89%) and February the cloudiest (78%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 80% | 3.3 |
| February | 78% | 4.1 |
| March | 79% | 5.2 |
| April | 83% | 6.3 |
| May | 82% | 6.6 |
| June | 89% | 7.3 |
| July | 88% | 7.0 |
| August | 88% | 6.5 |
| September | 83% | 5.3 |
| October | 83% | 4.5 |
| November | 82% | 3.5 |
| December | 80% | 3.0 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Robert Lee need?
A normal year in Robert Lee brings 2,635 heating degree days, 51% fewer than the median U.S. place (5,373), and 2,445 cooling degree days, 2.7 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,996 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 654 | 1 |
| February | 462 | 4 |
| March | 306 | 23 |
| April | 110 | 106 |
| May | 18 | 291 |
| June | 1 | 464 |
| July | 0 | 591 |
| August | 0 | 544 |
| September | 9 | 312 |
| October | 101 | 98 |
| November | 360 | 12 |
| December | 614 | 1 |
| Year (annual) | 2,635 | 2,445 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00417669. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Robert Lee been warmer than normal lately?
Over 33 complete years from 1964 to 2015, the station's annual mean temperature rose at a fitted 5.9°F per century (+0.33°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Robert Lee's climate compare?
Robert Lee is warmer than 105 of the other 320 places with their own NOAA record in Texas, and wetter than 69. Across the 7,247 U.S. stations with normals, its annual mean of 64.4°F is warmer than 86%.
In the Köppen classification computed from these normals, Robert Lee is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Robert Lee's climate
What is the coldest month in Robert Lee?
January, with a normal high of 58°F and a normal low of 30°F. The warmest is July (96°F by day, 72°F at night).
Does it snow in Robert Lee?
Rarely: NOAA's normal is 0.5 inch a year.
What is the rainiest month in Robert Lee?
September, with 2.65 in of precipitation in a normal year; the driest is December with 0.95 in.
What plant hardiness zone is Robert Lee in?
The USDA's 2023 map puts Robert Lee in zone 8a in ZIP code 76945, the nearest ZIP area. By the same method at Robert Lee's NOAA station, the coldest night of a typical year reaches 13°F (16 years, 1991-2020): zone 8a.
How late can frost come in Robert Lee?
In half of years the last 32°F night comes after March 26; in one year in ten it comes after April 12. Waiting until April 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Water Valley, TX19 miles from this station, 64.7°F a year
- Bronte (11 mi NNE), TX20 miles from this station, 63.7°F a year
- Sterling City, TX27 miles from this station, 63.6°F a year
- Wingate, TX27 miles from this station, 62.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made