June 30, 2020
Summary:After a brief respite, summer returns to the San Joaquin Valley today, although no triple digits are expected through at least Friday. The low pressure system that resulted in the mild temperatures yesterday, has morphed into a broad area of low pressure which now stretches from western Canada southeastward through Colorado. California is essentially sandwiched between this low and the eastern Pacific high just off shore. This puts us in a dry, northwesterly flow aloft. Temperatures will climb through Wednesday, ending up in the mid to upper 90s then will fall back a bit Thursday and Friday as a weak trough of low pressure skirts northern California.
Over the weekend, strong upper level high pressure over Texas will retrograde into the Four Corners region. This will usher in the monsoon season over at least parts of Arizona as the clockwise flow around the high begins to drag up subtropical moisture from Mexico. Temperatures this weekend and early next week will be determined by how far west this high expands. No monsoonal moisture is anticipated at this time as the winds over central California will remain southwesterly, sandwiched between the southwestern high and persistent low pressure over the Pacific Northwest.
Forecast: Clear skies through Friday. Clear skies will continue Friday night through Tuesday.
Short Term:
| Madera 95/58/96/59/91 | Reedley 94/57/95/58/92 | Dinuba 93/56/95/57/91 |
| Porterville 95/57/95/58/92 | Lindsay 94/57/96/58/93 | Delano 95/62/97/63/93 |
| Bakersfield 95/66/97/67/94 | Taft 93/69/96/68/93 | Arvin 95/63/97/64/95 |
| Lamont 94/64/97/65/95 | Pixley 94/59/95/60/93 | Tulare 93/56/95/57/92 |
| Woodlake 93/57/95/58/91 | Hanford 95/60/95/59/93 | Orosi 93/56/95/57/92 |
Seven Day Forecast:
| Friday
Mostly clear 59/97 |
Saturday
Mostly clear 61/99 |
Sunday
Mostly clear 63/100 |
Monday
Mostly clear 64/101 |
Tuesday
Mostly clear 63/101 |
Two Week Outlook: July 7 through July 13: This model is indicating a fairly typical summer pattern with high pressure dominating over the eastern Pacific, extending over California into the Desert Southwest. Temperatures will be marginally above average with typical dry conditions continuing.
July: This model indicates warmer than average temperatures over the next four weeks. The usual dry pattern will prevail in the San Joaquin Valley with the chance of precipitation on any given day being almost nil. Average precipitation for the month is .01.
July, August, September: This time of year, the 90 day out look is no secret. July and August will be hot and dry while September has a minor risk of precipitation, mainly from the tropics. This out look appears fairly typical. Marginally above average temperatures are expected with near average precipitation, which is a meaningless projection.
Winds Discussion: During the afternoons and evenings, winds will be mostly out of the northwest at around 5 to 12 MPH. During the night and morning hours, winds will generally range between 3 and 7 MPH with periods of calm conditions.
Rain Discussion: Expect dry conditions for the next 7 to 10 days.
Afternoon Dew Points Today: Mid to upper 40s. Kern: Low to mid 40s. Humidity values ranging from 20%/70% at Visalia. Bakersfield 20%/55%
Actual Humidity range June 28, 2020: Delano, 60%/24%, Porterville, 68%/17%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 80%. Bakersfield: Today: 100% Tomorrow: 90%
ET Rates Over the Past Seven Days: Stratford 2.21, Parlier 2.06, Blackwell Corner 2.45, Arvin 2.26, Orange Cove 2.22, Porterville 2.11, Delano 2.06. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 75, Parlier 80, Blackwell NA, Arvin, 80, Orange Cove 84, Porterville 80, Delano 80
Record Temperatures: 110/53. Average Temperatures: 96/63
Cooling Degree Days this Season: 633 +179
Courtesy of the NWS
Average temperature for June so far: 77.4 +3.0
Precipitation: Seasonal total for Fresno/average + or 7.63 or -3.68. Month to Date: .00 -.21
Since Oct 1, 2019, Bakersfield: 7.20, or +.85. Month to Date: .02 -.06
Water year season is from October 1st through September.
Chilling Hours November 1st through February 28: Orange Cove, Parlier, Arvin, Shafter, Stratford, Delano, Lindcove, Porterville
Hours at 45 or below 45.
Sunrise: 5:43, Sunset: 8:22 pm. Hours of Daylight: 14:39
Yesterday’s Weather:
MCE : Merced 153 : DH1700 / 80 / 58 / 0.00 /
MAE : Madera 253 : DH1700 / 85 / 60 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 92 / 70 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 95 / 62 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 95 / 59 / 0.00 /
BFL : Bakersfield Airport 496 : DH1600 / 92 / 74 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 94 / 65 / 0.00 /
ATEC1 : Avenal 787 : DH1700 / M / M / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 93 / 65 / 0.00 /
TFTC1 : Taft 759 : DH1700 / M / M / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / M / M / 0.00 /
Rainfall: 24hr W.Y. % Last Y. % Ave. Year ave.
STOCKTON 0.00 8.35 61 18.37 134 13.76 14.06
MODESTO 0.00 6.94 54 13.35 104 12.83 13.11
MERCED 0.00 9.54 78 13.27 109 12.19 12.50
MADERA 0.00 6.02 51 11.42 97 11.73 12.02
FRESNO 0.00 7.63 67 11.85 105 11.31 11.50
HANFORD 0.00 6.62 67 9.50 96 9.89 10.10
BAKERSFIELD 0.00 7.20 113 7.80 123 6.35 6.47
BISHOP 0.00 2.25 48 8.47 181 4.68 5.18
SALINAS 0.00 9.16 73 13.80 109 12.63 12.83
PASO ROBLES 0.00 11.37 91 14.88 120 12.45 12.78
SANTA MARIA 0.00 10.61 77 15.68 114 13.76 13.95
Next report: July 1/morning