McNary (2 mi N), Arizona climate: Climate normals at a NOAA weather station

McNary (2 mi N)'s normal year runs from 21°F January nights to 80°F July afternoons, with 24.1 inches of precipitation and 66 inches of snow a year. (NOAA 1991-2020 normals)

In metric: a yearly mean of 9.2°C, January lows of −6°C, July highs of 27°C, 612 mm of precipitation a year.

  • NOAA stationMcNary (2 mi N)
  • Station IDUSC00025412
  • Location34.11°N 109.86°W
  • Elevation7,340 ft (2,237 m)

On October 23, the normal high in McNary (2 mi N) is 62°F and the normal low 34°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 McNary (2 mi N).

  1. Jan 45° 21°
  2. Feb 47° 23°
  3. Mar 53° 27°
  4. Apr 60° 30°
  5. May 69° 38°
  6. Jun 80° 47°
  7. Jul 80° 52°
  8. Aug 77° 52°
  9. Sep 73° 46°
  10. Oct 64° 36°
  11. Nov 54° 28°
  12. Dec 45° 21°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

What is the weather like at McNary (2 mi N) each month?

July is the warmest month, with normal highs of 80°F; January the coldest, with normal lows of 21°F. The most precipitation falls in August (4.60 in), the least in June (0.53 in).

McNary (2 mi N) monthly normals, 1991-2020 (°F, inches)
MonthHighLowMeanPrecip.SnowWet days90°F daysFreezing nightsDaylight
January 45°F21°F32.6°F 2.1114.8 8<13010 h 10 min
February 47°F23°F35.0°F 1.9613.9 7<12711 h
March 53°F27°F40.1°F 1.8311.9 8<12711 h 50 min
April 60°F30°F44.8°F 0.914.7 5<11913 h
May 69°F38°F53.3°F 0.700.6 5<1513 h 50 min
June 80°F47°F63.2°F 0.530.0 41<114 h 20 min
July 80°F52°F66.0°F 3.720.0 151<114 h 10 min
August 77°F52°F64.3°F 4.600.0 17<1<113 h 30 min
September 73°F46°F59.5°F 2.220.0 10<1<112 h 30 min
October 64°F36°F50.3°F 1.712.1 6<1811 h 20 min
November 54°F28°F40.9°F 1.565.2 5<12410 h 30 min
December 45°F21°F32.8°F 2.2612.8 8<1309 h 50 min
Year (annual)62°F35°F48.6°F24.1166.0972170
The same normals in °C and millimetres
McNary (2 mi N) monthly normals, 1991-2020 (°C, mm, snow in cm)
MonthHighLowMeanPrecip.Snow
January7°C−6°C0.3°C54 mm38 cm
February8°C−5°C1.7°C50 mm35 cm
March12°C−3°C4.5°C46 mm30 cm
April15°C−1°C7.1°C23 mm12 cm
May21°C3°C11.8°C18 mm2 cm
June27°C8°C17.3°C13 mm0 cm
July27°C11°C18.9°C94 mm0 cm
August25°C11°C17.9°C117 mm0 cm
September23°C8°C15.3°C56 mm0 cm
October18°C2°C10.2°C43 mm5 cm
November12°C−2°C4.9°C40 mm13 cm
December7°C−6°C0.4°C57 mm33 cm
Normal daily high and low by month, McNary (2 mi N)
Normal precipitation by month, McNary (2 mi N) (inches)

Source: NOAA NCEI 1991-2020 monthly normals, station USC00025412; 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.

Which months are mildest at McNary (2 mi N)?

Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, June has the fewest days with rain (4).

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 USC00025412.

When is the last frost at McNary (2 mi N)?

In McNary (2 mi N), the last spring frost (32°F) comes after May 20 in half of years and after June 4 in one year in ten; the first autumn frost comes before October 11 in half of years and before September 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
May 201 year in 10 after June 4; 9 in 10 after May 5
First autumn frost, half of years before
October 111 year in 10 before September 29; 9 in 10 before October 24

NOAA puts the median frost-free season at 142 days, and the season without a hard freeze (28°F) at 167 days.

A hard freeze (28°F) comes after May 6 in half of springs and before October 22 in half of autumns.

The USDA's 2023 Plant Hardiness Zone Map puts McNary (2 mi N) in zone 6b in ZIP code 85935, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 7a: the coldest night of a typical year reaches 1°F (29 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.

Frost dates for every NOAA station in Arizona · Frost dates by ZIP code

Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00025412; 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 at McNary (2 mi N)?

In a normal year in McNary (2 mi N), 2 days a year reach 90°F, 170 nights fall to 32°F or colder and 97 days bring measurable precipitation.

Days at 90°F or more
2a normal year
Days at 100°F or more
fewer than 1a normal year
Nights at 32°F or colder
170a normal year
Days that stay below freezing
12high of 32°F or less
Days with 0.01 inch of precipitation
97a normal year
Days with 1 inch of snow or more
19a normal year

The highest temperature in this station's record (since 1933) is 98°F, on June 14, 1974; the lowest is −23°F, on January 4, 1949.

The wettest calendar year on that record is 1978, with 46.74 in; the snowiest season is 1972–73, with 193.5 inches.

Source: NOAA NCEI 1991-2020 annual normals, station USC00025412; records: ACIS (NOAA Regional Climate Centers), station USC00025412. Records use complete months only; a month missing more than three days is left out.

How sunny is it at McNary (2 mi N)?

Over a year 86% of the sunlight that would reach the ground under clear skies gets through the clouds at McNary (2 mi N), 5.6 kWh per square metre a day. June is the sunniest month (91%) and July the cloudiest (80%).

McNary (2 mi N): sunshine by month (NASA POWER, 2001-2020)
MonthShare of clear-sky sunshineSunshine, kWh/m² a day
January82%3.3
February82%4.2
March86%5.7
April89%7.1
May90%7.9
June91%8.3
July80%6.8
August82%6.4
September87%5.9
October90%4.9
November87%3.7
December81%2.9

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 many heating and cooling degree days does McNary (2 mi N) record?

A normal year at McNary (2 mi N) brings 6,113 heating degree days, 14% more than the median U.S. place (5,373), and 138 cooling degree days, 85% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,900 growing degree days a year above 50°F.

McNary (2 mi N): normal heating and cooling degree days by month (base 65°F)
MonthHeatingCooling
January1,0030
February8410
March7720
April6060
May3653
June9137
July3263
August5531
September1705
October4560
November7230
December1,0000
Year (annual)6,113138

Source: NOAA NCEI 1991-2020 monthly normals, station USC00025412. 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.

Have recent years at McNary (2 mi N) been warmer than normal?

2025 averaged 50.4°F, 1.8°F above the 1991-2020 normal of 48.6°F. 3 of the 5 complete years since 2021 ran warmer than the normal.

McNary (2 mi N): each recent year's mean against the 1991-2020 normal (48.6°F)
YearMeanAgainst normalPrecip.Snow
202149.0°F+0.4°F28.5478.2
202247.9°F−0.7°F27.2951.9
202348.2°F−0.4°F21.0685.4
202449.5°F+0.9°F18.2278.0
202550.4°F+1.8°F19.2627.7

Over 72 complete years from 1934 to 2025, the station's annual mean temperature rose at a fitted 2.1°F per century (+0.12°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.

Source: observed years: ACIS, station USC00025412; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.

How does McNary (2 mi N)'s climate compare?

McNary (2 mi N) is warmer than 6 of the 97 places with their own NOAA record in Arizona, and wetter than 86. Across the 7,247 U.S. stations with normals, its annual mean of 48.6°F is warmer than 34%.

In the Köppen classification computed from these normals, McNary (2 mi N) is Csb: temperate, dry-summer, warm 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 McNary (2 mi N) share this climate record?

5 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.

  • McNary, AZ946 people · 2 mi S
  • Seven Mile, AZ765 people · 23 mi S
  • East Fork, AZ492 people · 21 mi S
  • Turkey Creek, AZ474 people · 22 mi S
  • Vernon, AZ230 people · 13 mi NE

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 McNary (2 mi N)'s climate

What is the coldest month at McNary (2 mi N)?

January, with a normal high of 45°F and a normal low of 21°F. The warmest is July (80°F by day, 52°F at night).

Does it snow at McNary (2 mi N)?

Yes: 66 inches in a normal year, falling on 30 days with 0.1 inch or more, the most in January (14.8 inches).

What is the rainiest month at McNary (2 mi N)?

August, with 4.60 in of precipitation in a normal year; the driest is June with 0.53 in.

What plant hardiness zone is McNary (2 mi N) in?

The USDA's 2023 map puts McNary (2 mi N) in zone 6b in ZIP code 85935, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 1°F (29 years, 1991-2020): zone 7a.

How late can frost come at McNary (2 mi N)?

In half of years the last 32°F night comes after May 20; in one year in ten it comes after June 4. Waiting until June 4 leaves about a one-in-ten chance of a later frost.

Nearby and next

Download these normals (CSV) · JSON · How these figures are made