June 9, 2018
Summary: The yo-yo ride of temperatures will continue for at least the next week as readings begin to come down again today due to a trough of low pressure from the Gulf of Alaska now moving into the Pacific Northwest and northern California. High clouds from this system have spread as far south as Fresno County but will be too thin to have much of an impact on temperatures. However, cooler air moving in aloft in association with this trough and a rather robust on shore flow will result in mid to upper 80s this afternoon and low to mid 80s Sunday afternoon. There will be localized gusty northwesterly winds along the west side of the valley as lower pressure over the interior west creates a steep pressure difference, allowing modified marine air to spill over the coastal hills and into the west side. Winds out of the northwest at around 10 to 20 MPH can be expected elsewhere through tonight.
We will begin to swing back in the other direction Monday as the trough pulls off to the northeast. This will allow a zone of upper level high pressure over the eastern Pacific to move in from the west. Mid to upper 90s can be expected as early as Tuesday and it’s possible the hottest locations Wednesday may reach the century mark.
Guess what, though? A new trough will begin to move inland Thursday and Friday, lowering temperatures at least back to seasonal averages which are now into the low 90s. the tropical eastern Pacific is busy with hurricane Alleta several hundred miles south of Cabo San Lucas and moving westward away from the coast. Some models actually show the formation of a new tropical system, placing it near the southern tip of Baja about Thursday or Friday of next week. It still appears the winds aloft will remain out of the west to southwest, preventing moisture from affecting California.
Forecast: Other than occasional high clouds, it will be mostly clear and cooler through Sunday. Mostly clear and warmer Monday through Wednesday. Mostly clear and cooler again Wednesday night through Saturday.
Short Term:
| Madera 85/52/81/54/90 | Reedley 86/53/83/54/89 | Dinuba 85/52/81/54/88 | |
| Porterville 86/53/83/54/90 | Lindsay 86/53/83/54/90 | Delano 87/57/84/55/91 | |
| Bakersfield 87/56/82/58/90 | Arvin 88/58/82/57/91 | Taft 86/65/82/59/90 | |
| Lamont 88/59/82/57/90 | Pixley 87/53/83/53/89 | Tulare 86/52/82/54/88 | |
| Woodlake 87/53/83/54/89 | Hanford 86/54/83/53/89 | Orosi 86/54/84/52/89 | |
Seven Day Forecast:
| Tuesday
Mostly clear 62/95 |
Wednesday
Mostly clear 64/99 |
Thursday
Mostly clear 62/93 |
Friday
Mostly clear 59/90 |
Saturday
Mostly clear 57/91 |
Two Week Outlook: June 16 through June 22: Believe it or not, this model is suggesting moisture will move into the Desert Southwest and the southern half of California. Considering the time of year, we must view this with some skepticism. Nevertheless, it is possible the monsoon season may get underway not to mention the possible development of tropical storms over the equatorial Pacific. Expect above average temperatures.
June: As we head into the summer months, it appears this June will be mostly dry, as is typical. Models are projecting higher than average pressure patterns during the month so look for temperatures, generally speaking, to be above average.
June, July, August: All summers are hot in the San Joaquin Valley, and typically very dry. This summer will be no exception. If there’s any tendency on modeling at all it would be that upper level high pressure would be marginally stronger than average with temperatures also running marginally above average. The monsoon season will begin in several weeks so it’s impossible to tell it will be an active one this year. We’ll just have to wait and see.
Winds: Winds will be generally out of the northwest through tonight at 10 to 20 MPH at times with local gusts to 30 MPH possible, mainly along the far west side. Winds Sunday will be out of the northwest at 5 to 15 MPH with winds generally at or less than 15 MPH Sunday night through Tuesday.
Rain: Expect dry conditions indefinitely
Afternoon Dew Points Today: Upper 30s to the lower 40s. Kern: Low to mid 40s.
Humidity: Visalia: 20%/75% Bakersfield: 20%/60%
Actual Humidity June 7, 2018: Delano, 92%/36%, Porterville, 88%/25%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 90% tomorrow 90% Bakersfield: Today: 90% Tomorrow: 90%
ET Rates Over the Past Seven Days: Stratford 2.10, Parlier 1.98, Blackwell 2.17, Lindcove 1.94, Arvin 2.13, Orange Cove 2.14, Porterville 1.90, Delano 1.94, Madera Two 1.94. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 72, Parlier 76, Blackwell 82, Lindcove, 73, Arvin, 78, Orange Cove 70, Porterville 83, Delano 75, Madera Two, NA
Record Temperatures: 108/47. Average Temperatures: 90/59
Cooling Degree Days this Season: 324 +81 Courtesy of the NWS
Average temperatures for June so far, 75.4 +2.9
Precipitation: Seasonal total/average/above or below average:
Since July 1, 2017 Fresno: 6.73 season. or -4.45. Month to Date: .00
Since July 1, 2017, Bakersfield: 3.93, or -2.35. Month to Date: .00
Water year season is from October 1st through September.
Chilling Hours November 1st through February 28: Orange Cove, Parlier, Arvin, Shafter, Stratford, Madera two, Lindcove, Porterville, Hours at 45 or below 45.
Sunrise: 5:40 am Sunset: 8:17 pm. Hours of Daylight: 14:35
Yesterday’s Weather:
MAE : Madera 253 : DH1700 / 86 / 51 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 87 / 57 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 87 / 57 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 87 / 51 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 87 / 60 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 85 / 54 / 0.00 /
ATEC1 : Avenal 787 : DH1659 / 84 / 52 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 87 / 53 / 0.00 /
TFTC1 : Taft 759 : DH1658 / 86 / 60 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 86 / M / 0.00 /
Rainfall: Water year Oct 1st through September 30th
Year % Last Y. % Ave. Annual ave.
STOCKTON 0.00 9.22 67 21.75 159 13.72 14.06
MODESTO 0.00 8.17 64 16.93 133 12.76 13.11
MERCED 0.00 7.06 58 15.98 131 12.16 12.50
MADERA 0.00 7.22 62 14.18 122 11.66 12.02
FRESNO 0.00 6.73 60 17.20 154 11.18 11.50
HANFORD 0.00 4.70 48 11.04 113 9.81 10.10
BAKERSFIELD 0.00 3.95 63 7.82 124 6.30 6.47
BISHOP 0.00 1.49 33 9.16 201 4.55 5.18
SALINAS 0.00 7.15 57 16.38 130 12.58 12.83
PASO ROBLES 0.00 9.62 77 16.14 130 12.44 12.78
SANTA MARIA 0.00 6.01 44 18.44 134 13.74 13.95
Next report: Monday, June 11