Hollis, Oklahoma climate: Normal weather by month, frost dates and records
Hollis's normal year runs from 26°F January nights to 96°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.4°C, January lows of −3°C, July highs of 36°C.
- NOAA stationHollis 5 mi E Mesonet
- Station IDUSC00344250
- Location34.69°N 99.83°W
- Elevation1,630 ft (497 m)
- From the center5 miles
- Population1,665
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hollis.
- Jan 54° 26°
- Feb 57° 30°
- Mar 66° 38°
- Apr 75° 46°
- May 84° 57°
- Jun 92° 67°
- Jul 96° 70°
- Aug 95° 69°
- Sep 87° 61°
- Oct 76° 48°
- Nov 64° 37°
- Dec 54° 28°
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 Hollis each month?
July is the warmest month, with normal highs of 96°F; January the coldest, with normal lows of 26°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 54°F | 26°F | 39.9°F | – | <1 | 25 | 10 h |
| February | 57°F | 30°F | 43.4°F | – | <1 | 19 | 11 h |
| March | 66°F | 38°F | 52.1°F | – | 1 | 9 | 11 h 50 min |
| April | 75°F | 46°F | 60.6°F | – | 3 | 2 | 13 h |
| May | 84°F | 57°F | 70.6°F | – | 11 | <1 | 14 h |
| June | 92°F | 67°F | 79.7°F | – | 24 | <1 | 14 h 30 min |
| July | 96°F | 70°F | 83.3°F | – | 28 | <1 | 14 h 20 min |
| August | 95°F | 69°F | 82.3°F | – | 25 | <1 | 13 h 30 min |
| September | 87°F | 61°F | 74.0°F | – | 15 | <1 | 12 h 30 min |
| October | 76°F | 48°F | 62.2°F | – | 3 | 2 | 11 h 20 min |
| November | 64°F | 37°F | 50.0°F | – | <1 | 10 | 10 h 20 min |
| December | 54°F | 28°F | 40.9°F | – | <1 | 22 | 9 h 50 min |
| Year (annual) | 75°F | 48°F | 61.6°F | – | 111 | 89 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 12°C | −3°C | 4.4°C |
| February | 14°C | −1°C | 6.3°C |
| March | 19°C | 3°C | 11.2°C |
| April | 24°C | 8°C | 15.9°C |
| May | 29°C | 14°C | 21.4°C |
| June | 34°C | 19°C | 26.5°C |
| July | 36°C | 21°C | 28.5°C |
| August | 35°C | 21°C | 27.9°C |
| September | 31°C | 16°C | 23.3°C |
| October | 24°C | 9°C | 16.8°C |
| November | 18°C | 3°C | 10.0°C |
| December | 12°C | −2°C | 4.9°C |
NOAA publishes no 1991-2020 snowfall normal for this station. Hollis's own co-op station Hollis (5 mi E) does: 3 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USC00344250; 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 Hollis?
Normal highs sit between 65°F and 85°F in March, April, May and October.
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 USC00344250.
When is the last frost in Hollis?
In Hollis, the last spring frost (32°F) comes after April 5 in half of years and after April 21 in one year in ten; the first autumn frost comes before October 31 in half of years and before October 16 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
- April 51 year in 10 after April 21; 9 in 10 after March 18
- First autumn frost, half of years before
- October 311 year in 10 before October 16; 9 in 10 before November 14
NOAA puts the median frost-free season at 208 days, and the season without a hard freeze (28°F) at 229 days.
A hard freeze (28°F) comes after March 25 in half of springs and before November 7 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hollis in zone 7b in ZIP code 73550, the nearest ZIP area.
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00344250; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Hollis?
In a normal year in Hollis, 111 days a year reach 90°F (38 of them 100°F or more) and 89 nights fall to 32°F or colder.
- Days at 90°F or more
- 111a normal year
- Days at 100°F or more
- 38a normal year
- Nights at 32°F or colder
- 89a normal year
- Days that stay below freezing
- 5high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00344250.
How sunny is Hollis?
Over a year 83% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hollis, 5.1 kWh per square metre a day. July is the sunniest month (89%) and February the cloudiest (76%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 82% | 3.1 |
| February | 76% | 3.7 |
| March | 79% | 5.0 |
| April | 81% | 6.0 |
| May | 81% | 6.5 |
| June | 88% | 7.3 |
| July | 89% | 7.1 |
| August | 88% | 6.4 |
| September | 85% | 5.3 |
| October | 83% | 4.2 |
| November | 82% | 3.3 |
| December | 78% | 2.7 |
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 Hollis need?
A normal year in Hollis brings 3,392 heating degree days, 37% fewer than the median U.S. place (5,373), and 2,174 cooling degree days, 2.4 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 5,340 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 778 | 0 |
| February | 607 | 1 |
| March | 410 | 8 |
| April | 177 | 45 |
| May | 44 | 216 |
| June | 0 | 439 |
| July | 0 | 567 |
| August | 0 | 534 |
| September | 13 | 283 |
| October | 162 | 75 |
| November | 456 | 6 |
| December | 746 | 0 |
| Year (annual) | 3,392 | 2,174 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00344250. 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 Hollis been warmer than normal lately?
2025 averaged 62.6°F, 1.0°F above the 1991-2020 normal of 61.6°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal |
|---|---|---|
| 2021 | 62.0°F | +0.4°F |
| 2022 | 63.0°F | +1.4°F |
| 2023 | 63.7°F | +2.1°F |
| 2024 | 64.0°F | +2.4°F |
| 2025 | 62.6°F | +1.0°F |
Source: observed years: ACIS, station USC00344250. A year counts only with all twelve months complete.
How does Hollis's climate compare?
Hollis is warmer than 103 of the other 133 places with their own NOAA record in Oklahoma. Across the 7,247 U.S. stations with normals, its annual mean of 61.6°F is warmer than 79%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Hollis share this climate record?
2 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.
- Gould, OK95 people · 4 mi E
- Dodson, TX93 people · 12 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Hollis's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Hollis. This page uses Hollis 5 mi E Mesonet; the other differs by site and elevation:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Hollis (5 mi E) USC00344249 | 6 mi E | 1,621 ft | 60.4°F | 23°F | 97°F | 25.8 | 3 | April 10 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Hollis's climate
What is the coldest month in Hollis?
January, with a normal high of 54°F and a normal low of 26°F. The warmest is July (96°F by day, 70°F at night).
Does it snow in Hollis?
Yes. NOAA publishes no 1991-2020 snowfall normal for Hollis's NOAA station; Hollis's own co-op station Hollis (5 mi E) records 3 inches of snow in a normal year.
What plant hardiness zone is Hollis in?
The USDA's 2023 map puts Hollis in zone 7b in ZIP code 73550, the nearest ZIP area.
How late can frost come in Hollis?
In half of years the last 32°F night comes after April 5; in one year in ten it comes after April 21. Waiting until April 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oklahoma climateThe statewide normals and every place in the state
- Mangum, OK24 miles from this station, 60.6°F a year
- Wellington, TX24 miles from this station, 63.4°F a year
- Quanah, TX29 miles from this station, 62.1°F a year
- Altus, OK29 miles from this station, 61.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made