Julian weather in May: Julian, California: normal highs, lows, rain and records for May

Julian in May has a normal high of 69°F and a normal low of 47°F, a daily mean of 58°F, rising from 65°F on the 1st to 74°F by the 31st. Measurable precipitation falls on 3 days in a normal May, 0.82 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 20°C and low of 8°C, 21 mm of precipitation in May.

  • NOAA stationJulian Fire Station
  • Station IDUSC00044412
  • Location33.08°N 116.59°W
  • Elevation4,215 ft (1,285 m)
  • Population (census place)1,491
  1. Jan 53° 39°
  2. Feb 54° 39°
  3. Mar 58° 41°
  4. Apr 62° 43°
  5. May 69° 47°
  6. Jun 79° 55°
  7. Jul 86° 63°
  8. Aug 86° 62°
  9. Sep 81° 57°
  10. Oct 71° 50°
  11. Nov 60° 43°
  12. Dec 52° 38°

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

How warm is Julian in May?

The normal high is 69°F and the normal low 47°F, for a daily mean of 57.8°F. May is 5.3°F warmer than April and 9.4°F cooler than June. May is the 6th warmest month of the year in Julian and the 8th wettest. Across the month the normal high rises 9°F, from 65°F on May 1 to 74°F on May 31. From one year to the next May's mean temperature typically moves about 4.3°F either way (NOAA's standard deviation), so roughly two Mays in three average between 54°F and 62°F.

Julian in May, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 11%).

Normal high and low on five days of May, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
May 165°F45°F11%7%
May 866°F46°F10%6%
May 1568°F47°F9%5%
May 2270°F48°F7%4%
May 3174°F50°F5%3%
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
Julian: NOAA 1991-2020 daily normals for each day of May
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
May 165°F45°F11%7%13 h 30 min
May 265°F45°F11%7%13 h 30 min
May 365°F45°F11%6%13 h 30 min
May 465°F45°F11%6%13 h 30 min
May 565°F45°F11%6%13 h 30 min
May 666°F45°F11%6%13 h 40 min
May 766°F45°F11%6%13 h 40 min
May 866°F46°F10%6%13 h 40 min
May 966°F46°F10%6%13 h 40 min
May 1067°F46°F10%6%13 h 40 min
May 1167°F46°F10%5%13 h 40 min
May 1267°F46°F10%5%13 h 50 min
May 1367°F46°F9%5%13 h 50 min
May 1468°F47°F9%5%13 h 50 min
May 1568°F47°F9%5%13 h 50 min
May 1668°F47°F9%5%13 h 50 min
May 1769°F47°F9%5%13 h 50 min
May 1869°F47°F8%5%13 h 50 min
May 1969°F48°F8%4%14 h
May 2070°F48°F8%4%14 h
May 2170°F48°F8%4%14 h
May 2270°F48°F7%4%14 h
May 2371°F48°F7%4%14 h
May 2471°F49°F7%4%14 h
May 2571°F49°F7%4%14 h
May 2672°F49°F6%3%14 h
May 2772°F49°F6%3%14 h 10 min
May 2872°F50°F6%3%14 h 10 min
May 2973°F50°F5%3%14 h 10 min
May 3073°F50°F5%3%14 h 10 min
May 3174°F50°F5%3%14 h 10 min
Normal high
69°FMay average
Normal low
47°FMay average
Precipitation
0.82 inmonth total
Days with precipitation
30.01 inch or more
Daylight
13 h 30 min to 14 h 10 minMay 1 to May 31
Days at 70°F or more
18
Days at 80°F or more
6
Sunshine
93%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USC00044412; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Julian in May?

On a given May day the chance of 0.01 inch or more is 9% on average, highest around May 1 (11%). In all, 0.82 in falls on 3 days of a normal May.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00044412.

What are the records for May in Julian?

The May mean against the 1991-2020 normal of 57.8°F: 2021 58.6°F (+0.8), 2022 59.1°F (+1.3), 2023 56.2°F (−1.6), 2024 57.5°F (−0.3), 2025 58.8°F (+1.0), 2026 58.4°F (+0.6). 4 of 6 ran warmer than normal.

Julian: May in recent years against the 1991-2020 normal
MayMeanAgainst normalPrecip.
202158.6°F+0.8°F0.08 in
202259.1°F+1.3°F0.00 in
202356.2°F−1.6°F0.57 in
202457.5°F−0.3°F0.41 in
202558.8°F+1.0°F0.71 in
202658.4°F+0.6°F0.98 in

Source: recent months: ACIS, station USC00044412. Records and recent months use complete months only.

How does May in Julian compare across California?

Across the 219 places PlainClimate covers in California, May normal highs run from 58°F in Tahoma to 96°F in Needles; Julian's is 69°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places