
July 1, 2020
Summary: The marine layer along the coast deepened somewhat overnight. The latest sounding at Monterey indicates a depth of 2,100 feet. There is a weak push of modified marine air through the Delta as winds at Travis Air Force Base were sustained at 17 MPH at last report. Infrared satellite imagery shows the coastal low cloud deck approaching Pacheco Pass. We may see a minor influx of modified sea breeze later this afternoon, mainly in the northern half of the valley, lowering temperatures slightly. The remainder of the central and south valley will continue to be in the mid to upper 90s through Friday.
In the broad picture, low pressure extends from British Columbia southeastward into Wyoming. The flow aloft above central California is now westerly, which is an extremely dry flow this time of year. Over the Fourth of July weekend, upper level high pressure over Texas will retrograde into the Desert Southwest while persistent low pressure remains over the Pacific Northwest. This is a common pattern for early July. Temperatures over the weekend will be determined by a juggling act between the low to our north and the low over the Desert Southwest.
Over the weekend and into next week, a dry southwesterly flow will prevail between these two systems. Barring something unforeseen, temperatures over the holiday weekend will be near the century mark.
Forecast: Clear skies through Saturday. Clear skies will continue Saturday night through Wednesday.
Short Term:
Madera 94/55/94/56/96 | Reedley 95/55/94/56/97 | Dinuba 94/54/94/55/95 |
Porterville 97/55/96/57/97 | Lindsay 96/55/95/55/97 | Delano 97/61/96/63/97 |
Bakersfield 97/68/95/65/98 | Taft 95/67/94/68/97 | Arvin 97/62/96/63/97 |
Lamont 97/63/.96/64/98 | Pixley 96/56/94/58/96 | Tulare 95/55/94/56/96 |
Woodlake 95/54/94/54/96 | Hanford 96/57/94/58/97 | Orosi 94/55/94/56/96 |
Seven Day Forecast:
Saturday
Mostly clear 59/100 |
Sunday
Mostly clear 62/101 |
Monday
Mostly clear 61/99 |
Tuesday
Mostly clear 59/98 |
Wednesday
Mostly clear 61/100 |
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: Winds later this afternoon and tonight, mainly along the Interstate 5 corridor, will increase out of the west or northwest at 10 to 15 MPH with local gusts to 25 MPH. otherwise, 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: Upper 40s to the lower 50s. Kern: Mid to upper 40s. Humidity values ranging from 20%/75% at Visalia. Bakersfield 15%/45%
Actual Humidity range June 30, 2020: Delano, 75%/25%, Porterville, 72%/20%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 100%. Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 2.15, Parlier 2.02, Blackwell Corner 2.39, Arvin 2.27, Orange Cove 2.17, Porterville 2.07, Delano 2.04. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 76, Parlier 81, Blackwell NA, Arvin, 82, Orange Cove 84, Porterville 80, Delano 77
Record Temperatures: 114/53. Average Temperatures: 96/63
Cooling Degree Days this Season: 648 +168
Courtesy of the NWS
Average temperature for June so far: 77.1 +2.5
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: 5:44, Sunset: 8:22 pm. Hours of Daylight: 14:38
Yesterday’s Weather:
MCE : Merced 153 : DH1700 / 96 / 58 / 0.00 /
MAE : Madera 253 : DH1700 / 94 / 58 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 94 / 65 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 93 / 56 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 96 / 56 / 0.00 /
BFL : Bakersfield Airport 496 : DH1600 / 93 / 67 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 93 / 59 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 93 / 60 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 94 / 61 / 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 4.69 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 2/morning