Bonham, Texas climate: Normal weather by month, frost dates and records
Bonham's normal year runs from 33°F January nights to 94°F July afternoons, with 45.5 inches of precipitation and 1 inch of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.5°C, January lows of 0°C, July highs of 34°C, 1,156 mm of precipitation a year.
- NOAA stationBonham (3 mi NNE)
- Station IDUSC00410923
- Location33.64°N 96.17°W
- Elevation592 ft (180 m)
- From the center4 miles
- Population11,115
On October 23, the normal high in Bonham is 74°F and the normal low 50°F, and the chance of measurable rain or snow is 19%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Bonham.
- Jan 53° 33°
- Feb 57° 36°
- Mar 65° 44°
- Apr 73° 51°
- May 81° 61°
- Jun 89° 70°
- Jul 94° 73°
- Aug 94° 72°
- Sep 87° 65°
- Oct 77° 53°
- Nov 65° 42°
- Dec 55° 35°
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 Bonham each month?
July is the warmest month, with normal highs of 94°F; January the coldest, with normal lows of 33°F. The most precipitation falls in May (4.94 in), the least in January (2.81 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 53°F | 33°F | 42.8°F | 2.81 | 0.3 | 6 | <1 | 17 | 10 h 10 min |
| February | 57°F | 36°F | 46.7°F | 3.10 | 0.5 | 7 | <1 | 11 | 11 h |
| March | 65°F | 44°F | 54.4°F | 4.30 | 0.0 | 8 | <1 | 4 | 12 h |
| April | 73°F | 51°F | 62.4°F | 4.01 | 0.0 | 7 | <1 | 1 | 13 h |
| May | 81°F | 61°F | 71.0°F | 4.94 | 0.0 | 8 | 2 | <1 | 13 h 50 min |
| June | 89°F | 70°F | 79.3°F | 4.46 | 0.0 | 7 | 14 | <1 | 14 h 20 min |
| July | 94°F | 73°F | 83.5°F | 3.21 | 0.0 | 5 | 24 | <1 | 14 h 10 min |
| August | 94°F | 72°F | 83.1°F | 2.89 | 0.0 | 5 | 23 | <1 | 13 h 30 min |
| September | 87°F | 65°F | 75.8°F | 4.07 | 0.0 | 6 | 12 | <1 | 12 h 30 min |
| October | 77°F | 53°F | 64.8°F | 4.58 | 0.0 | 6 | 2 | <1 | 11 h 20 min |
| November | 65°F | 42°F | 53.4°F | 3.48 | 0.0 | 6 | <1 | 7 | 10 h 30 min |
| December | 55°F | 35°F | 44.8°F | 3.66 | 0.3 | 6 | <1 | 15 | 10 h |
| Year (annual) | 74°F | 53°F | 63.5°F | 45.51 | 1.1 | 76 | 78 | 55 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 12°C | 0°C | 6.0°C | 71 mm | 1 cm |
| February | 14°C | 2°C | 8.2°C | 79 mm | 1 cm |
| March | 18°C | 6°C | 12.4°C | 109 mm | 0 cm |
| April | 23°C | 11°C | 16.9°C | 102 mm | 0 cm |
| May | 27°C | 16°C | 21.7°C | 125 mm | 0 cm |
| June | 32°C | 21°C | 26.3°C | 113 mm | 0 cm |
| July | 34°C | 23°C | 28.6°C | 82 mm | 0 cm |
| August | 34°C | 22°C | 28.4°C | 73 mm | 0 cm |
| September | 31°C | 18°C | 24.3°C | 103 mm | 0 cm |
| October | 25°C | 12°C | 18.2°C | 116 mm | 0 cm |
| November | 18°C | 6°C | 11.9°C | 88 mm | 0 cm |
| December | 13°C | 2°C | 7.1°C | 93 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00410923; 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 Bonham?
Normal highs sit between 65°F and 85°F in March, April, May and October. Of those, October has the fewest days with rain (6).
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 USC00410923.
When is the last frost in Bonham?
In Bonham, the last spring frost (32°F) comes after March 16 in half of years and after April 4 in one year in ten; the first autumn frost comes before November 13 in half of years and before October 29 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 161 year in 10 after April 4; 9 in 10 after February 28
- First autumn frost, half of years before
- November 131 year in 10 before October 29; 9 in 10 before December 1
NOAA puts the median frost-free season at 242 days, and the season without a hard freeze (28°F) at 265 days.
A hard freeze (28°F) comes after March 4 in half of springs and before November 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bonham in zone 8a in ZIP code 75418, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Bonham's NOAA station is in zone 8a: the coldest night of a typical year reaches 14°F (25 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 USC00410923; 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 Bonham?
In a normal year in Bonham, 78 days a year reach 90°F (11 of them 100°F or more), 55 nights fall to 32°F or colder and 76 days bring measurable precipitation.
- Days at 90°F or more
- 78a normal year
- Days at 100°F or more
- 11a normal year
- Nights at 32°F or colder
- 55a normal year
- Days that stay below freezing
- 3high of 32°F or less
- Days with 0.01 inch of precipitation
- 76a normal year
- Days with 1 inch of snow or more
- fewer than 1a normal year
The highest temperature in this station's record (since 1903) is 115°F, on August 10, 1936; the lowest is −5°F, on January 19, 1930.
The wettest calendar year on that record is 2015, with 76.32 in; the snowiest season is 1909–10, with 15.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00410923; records: ACIS (NOAA Regional Climate Centers), station USC00410923. Records use complete months only; a month missing more than three days is left out.
How sunny is Bonham?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bonham, 4.6 kWh per square metre a day. July is the sunniest month (87%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.8 |
| February | 69% | 3.3 |
| March | 72% | 4.4 |
| April | 75% | 5.3 |
| May | 75% | 5.8 |
| June | 83% | 6.6 |
| July | 87% | 6.7 |
| August | 86% | 6.1 |
| September | 83% | 5.1 |
| October | 80% | 4.0 |
| November | 77% | 3.0 |
| December | 73% | 2.5 |
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 Bonham need?
A normal year in Bonham brings 2,822 heating degree days, 47% fewer than the median U.S. place (5,373), and 2,310 cooling degree days, 2.5 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 5,764 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 689 | 1 |
| February | 516 | 2 |
| March | 344 | 15 |
| April | 136 | 58 |
| May | 25 | 211 |
| June | 0 | 428 |
| July | 0 | 574 |
| August | 0 | 561 |
| September | 10 | 335 |
| October | 112 | 107 |
| November | 363 | 16 |
| December | 626 | 2 |
| Year (annual) | 2,822 | 2,310 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00410923. 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 Bonham been warmer than normal lately?
2022 averaged 64.7°F, 1.2°F above the 1991-2020 normal of 63.5°F. 2 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 64.0°F | +0.5°F | 45.57 | – |
| 2022 | 64.7°F | +1.2°F | 43.06 | – |
Over 48 complete years from 1948 to 2022, the station's annual mean temperature rose at a fitted 2.0°F per century (+0.11°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00410923; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Bonham's climate compare?
Bonham is warmer than 72 of the other 320 places with their own NOAA record in Texas, and wetter than 256. Across the 7,247 U.S. stations with normals, its annual mean of 63.5°F is warmer than 84%.
In the Köppen classification computed from these normals, Bonham 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.
Which places near Bonham share this climate record?
15 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Honey Grove, TX1,802 people · 15 mi E
- Whitewright, TX1,761 people · 16 mi SW
- Bells, TX1,520 people · 14 mi W
- Trenton, TX852 people · 18 mi SW
- Savoy, TX849 people · 12 mi W
- Ector, TX790 people · 7 mi SW
- Ladonia, TX629 people · 19 mi SE
- Dodd City, TX402 people · 7 mi SE
- Bennington, OK322 people · 26 mi N
- Bailey, TX241 people · 14 mi S
- Windom, TX201 people · 11 mi SE
- Ravenna, TX192 people · 5 mi NW
- Albany, OK150 people · 16 mi N
- Kemp, OK133 people · 14 mi NW
- Utica, OK24 people · 19 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Bonham's climate
What is the coldest month in Bonham?
January, with a normal high of 53°F and a normal low of 33°F. The warmest is July (94°F by day, 73°F at night).
Does it snow in Bonham?
Yes: 1 inch in a normal year, falling on 0 days with 0.1 inch or more, the most in February (0.5 inches).
What is the rainiest month in Bonham?
May, with 4.94 in of precipitation in a normal year; the driest is January with 2.81 in.
What plant hardiness zone is Bonham in?
The USDA's 2023 map puts Bonham in zone 8a in ZIP code 75418, the nearest ZIP area. By the same method at Bonham's NOAA station, the coldest night of a typical year reaches 14°F (25 years, 1991-2020): zone 8a.
How late can frost come in Bonham?
In half of years the last 32°F night comes after March 16; in one year in ten it comes after April 4. Waiting until April 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Durant, OK27 miles from this station, 62.9°F a year
- Sherman, TX28 miles from this station, 63.6°F a year
- Greenville, TX33 miles from this station, 66.0°F a year
- Paris, TX35 miles from this station, 65.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made