Stockton, California Elevation: 36 feet      Latitude: 37 54N   Longitude: 121 14W     Average Temperature Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 62 45 51 54 60 66 73 78 77 73 65 54 46   Average High Temperature Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 74 53 61 66 73 81 88 94 93 88 79 64 53   Average Low Temperature Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 49 37 40 43 46 52 57 61 60 57 51 42 37   Highest Recorded Temperature Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 114 75 78 87 100 107 111 114 109 108 101 85 73   Lowest Recorded Temperature Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 16 16 22 27 32 38 45 49 47 42 33 25 17   Average Number of Clear Days Years on Record: 46  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 185 6 7 10 12 17 22 27 26 23 19 9 7   Average Number of Cloudy Days Years on Record: 46  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 104 19 15 13 9 5 2 1 1 2 6 12 18   Average Number of Partly Cloudy Days Years on Record: 46  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 77 6 6 8 9 9 6 3 4 5 6 9 6   Average Number of Rainy Days Years on Record: 51  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 51 9 8 8 5 2 1 1 3 6 6   Average Number of Days Above 90F/32C Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 80 --- --- --- 1 6 13 23 21 13 3 --- ---   Average Number of Days Above 70F/21C Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 214 --- 2 9 19 28 30 31 31 30 27 8 ---   Average Number of Days Below 32F/0C Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 23 8 3 1 --- --- --- --- --- --- --- 2 8   Average Precipitation Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. in. 13.8 2.8 2.1 2.2 1.1 0.3 0.1 --- --- 0.3 0.7 1.8 2.3   Most Recorded Rainfall Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. in. 26.6 7.1 6 6.5 3.5 2.3 0.7 0.6 0.8 3 2.2 6.2 8   Least Recorded Rainfall Years on Record: 47  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. in. 5.4 0.1 --- --- --- --- --- --- --- --- --- --- ---   Average Number of Days With Thunderstorms Years on Record: 36  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 2 --- --- 1 1 --- --- --- --- --- --- --- ---   Average Number of Days With Fog Years on Record: 36  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 111 24 17 11 5 2 --- --- --- 2 8 18 24   Average Morning Relative Humidity Years on Record: 25  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. % 76 90 90 85 76 65 60 61 65 70 77 87 91   Average Evening Relative Humidity Years on Record: 26  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. % 45 70 60 51 41 33 29 26 28 31 37 59 71   Average Dew Point Years on Record: 27  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. °F 46 39 42 42 43 46 49 52 52 51 47 44 40   Heating Degree Days Years on Record: 30  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 2707 620 406 341 211 53 7 --- --- 10 79 360 620   Cooling Degree Days Years on Record: 30  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Days 1470 --- --- --- 40 106 256 394 366 241 67 --- ---   Average Wind Speed Years on Record: 27  YEAR Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. mph 9 9 9 9 9 10 11 10 9 9 9 9 9   First Frost Date 11/14          Last Frost Date 3/23 Frost is defined as a light freeze of temperatures ranging from 29 to 32 degrees F. (-2 to 0 degrees C).