June 2010
Report and Summary
Tyler, Texas
June 2010
by Robert K. Peters, Ph.D.
National Weather Service Cooperating Observer
June 2010 was warm and very wet. In fact, it was the second wettest June on record, surpassing June 1973 with its 10.03 inches for that mark. June 10, 2010 is the wettest June day ever. Compared with June 2009, the month was 1.5 deg. Warmer, and 10.16 inches wetter.
Year-to-date rainfall 6.83 inches greater in 2010 than in 2009. The thirty-day outlook had called for below normal temperatures and above normal precipitation.
The week May 30-June 5 saw temperatures about 5 degrees above normal, and precipitation about one-third normal. Storm systems early and late in the week brought the rainfall. These managed to puncture the persistent upper air high pressure ridge which was responsible along with dry soils and vegetation for the very warm temperatures. The second system, which crossed on the 2nd and 3rd, brought heavy rains of between one and three inches between Palestine and Lufkin. Otherwise, rainfall was spotty and amounts variable between none and two inches. The week's average temperature was 81.7 deg., which was 0.8 deg. Warmer than the previous week. Rainfall was 0.29 inch. Compared with the same week in 2009, the week was 8.3 deg. Warmer, and 0.16 inch drier.
The week June 6-12 saw temperatures about 3 degrees above normal, and rainfall about 1000 percent of normal. Torrential rains struck the area on June 9 and 10 as a slow-moving tropical low pressure system crossed from southwest to northeast. Between 9.0 and 12.0 inches of rain fell from western Smith County westward through parts of Anderson, Henderson, Van ?Zandt, and into Kaufman Counties. The 7.38 inches of rain which fell in Tyler on June 10 was the wettest June day on record, and the fourth wettest single day since records began in 1896. The mid-week rainfall brought Tyler's year-to-date precipitation total to normal. Isolated showers fell on the 8th ahead of the system, with warm and dry weather beginning and ending the week. The week's average temperature was 81.7 deg., identical with the previous week. Rainfall was 9.66 inches. Compared with the same week in 2009, the week was 1.5 deg. Warmer, and 8.72 inches wetter.
The week June 13-19 saw temperatures about 5 degrees above normal, and no rainfall. There were isolated showers to the southeast of Tyler during mid-week afternoons from the sea-breeze front, but rain reached to only about 30 miles south of Tyler on the 16th. Upper air high pressure was responsible for the warm and mostly dry weather. Tyler's temperatures were held down by green vegetation and moist soils from the rains of the previous week. The week's average temperature was 84.9 deg., which was 3.2 deg. Warmer than the previous week. Compared with the same week in 2009, the week was 0.4 deg. Warmer, and there was no rainfall in 2009.
The week June 20-26 saw temperatures about 4 degrees above normal, and rainfall about 75 percent of normal. Upper air high pressure controlled the area's weather for much of the week. However, an easterly wave crossed on the 24th, bringing widespread rainfall to the southern two-thirds of the region. The week's average temperature was 84.6, and rainfall was 0.55 inch. The week was 0.3 deg. Cooler than the previous week. Compared with the same week in 2009, the week was 2.3 deg. Cooler, and there was no rainfall in 2009.
The final four days of the month began warm and dry, but numerous showers affected the region after the 28th. These were the result of a dissipating frontal boundary, and the effects of Hurricane Alex over the Gulf of Mexico.
- KEY TO SYMBOLS:
- A = HAIL
- B = BLOWING
- D = DUST
- F = FOG
- H = HAZE
- IP = SLEET
- K = SMOKE
- L = DRIZZLE
- R = RAIN
- S = SNOW
- T = THUNDERSTORM
- Z = GREENWICH MEAN TIME
- ZL = FREEZING DRIZZLE
- ZR = FREEZING RAIN
- - = LIGHT
- + = HEAVY
R FOLLOWING A TEMPERATURE OR PRECIPITATION VALUE RECORD
The reporting period for temperatures, precipitation, and phenomenon on each day is for the twenty-four hours ending at midnight hours GMT--6 p.m. CST and 7 p.m. CDT. All times are given using the twenty-four hour clock, and are expressed in Greenwich Mean Time.
Observations are from NWS Station 41/9207/4 in Tyler, Texas. The term "normal" refers to averages from the standard climatic period 1971-2000.
JUNE 2010
- DY MX MN OBS PCPN REMARKS
- 01 95 73 93
- 02 94 73 89
- 03 84 71 0.03, PCPN 1800-1900
- 04 91 70 89
- 05 95 70 94
- 06 96 75 93
- 07 96 76 86 0.02 T, F, H, PCPN 2000-2100
- 08 90 74 81 0.02 F, PCPN 2100-2200
- 09 79 71 75 2.24 T, F, PCPN 1500-2000 Overnight Low 74
- 10 81 69 79 7.38 T, F, PCPN 0400-2100, 2200-2300
- 11 92 75 88 F
- 12 93 77 92
- 13 93 78 91
- 14 93 75 90
- 15 93 76 92
- 16 94 76 92 F
- 17 93 76 88
- 18 93 76 93
- 19 94 78 92
- 20 95 75 94
- 21 95 77 93
- 22 96 78 94
- 23 95 78 86
- 24 87 73 83 0.55 F, T, PCPN 1500-1800 MORNING LOW 77
- 25 93 73 91 tr.
- 26 94 76 93
- 27 94 75 92
- 28 95 76 93
- 29 88 73 74 0.82 T, F, PCPN 2300-2400 MN 000-1200 76
- 30 85 72 81 0.49 F, PCPN 0000-0100, 1900-2000
- JUNE 2010, RECORDS AND SUMMARY:
- JUNE 2010 IS SECOND WETTEST JUNE, SURPASSING JUNE 1973 WITH 10.03 INCHES;
- 10TH, RECORD DAILY RAINFALL 7.38 IN., PREVIOUS RECORD 1.25 IN 1997; WETTEST
- DAY IN JUNE, PREVIOUS RECORD 4.67 INCHES ON JUNE 13, 1960; FOURTH WETTEST
- DAY RECORDED.
- 12TH EQUALED RECORD HIGH MINIMUM 77, FIRST SET IN 1924;
- 21ST, 1128Z, ASTRONOMICAL ONSET OF SUMMER;
- 22ND, EQUALED RECORD HIGH MINIMUM TEMPERATURE OF 78, FIRST SET IN 1969;
- HIGHEST TEMPERATURE 96 ON THE 5TH, 6TH, 7TH, AND 22ND;
- LOWEST TEMPERATURE 69 ON THE 10TH,
- AVERAGE MAXIMUM 91.9 F.,
- AVERAGE MINIMUM 74.5 F.,
- AVERAGE TEMPERATURE 83.2 F.,
- 3.3 DEG. WARMER THAN NORMAL.
- 0 HEATING DEGREE DAYS,
- 0 PERCENT OF NORMAL HEATING DEGREE DAYS.
- 553 COOLING DEGREE DAYS,
- 123.4 PERCENT OF NORMAL COOLING DEGREE-DAYS;
- TOTAL PRECIPITATION 11.55 IN.,
- 7.90 IN. GREATER THAN MONTHLY NORMAL.
- 316.4 PERCENT OF NORMAL MONTHLY PRECIPITATION.
- YEAR-TO-DATE PRECIPITATION 24.59 IN.,
- 1.75 IN. GREATER THAN NORMAL YEAR-TO-DATE PRECIPITATION,
- 107.7 PERCENT OF NORMAL YEAR-TO-DATE PRECIPITATION;
- 5 DAYS ON WHICH THUNDERSTORMS OCCURRED;
- 9 DAYS ON WHICH THE VISIBILITY WAS RESTRICTED TO BETWEEN ONE-HALF AND SEVEN MILES BY FOG, SMOKE, OR HAZE;
- 0 DAYS ON WHICH THE VISIBILITY WAS RESTRICTED TO ONE-FOURTH MILE OR LESS BY FOG;
- 0 DAYS ON WHICH THE VISIBILITY WAS RESTRICTED BY DUST OR BLOWING DUST;
- 0 DAYS ON WHICH FROZEN PRECIPITATION WAS OBSERVED;
- 0 IN. TOTAL SNOWFALL.
- 8 DAYS ON WHICH MEASURABLE PRECIPITATION OCCURRED.
- 22 DAYS ON WHICH THE MAXIMUM TEMPERATURE REACHED OR EXCEEDED 90 DEG.;
- 0 DAYS ON WHICH THE MAXIMUM TEMPERATURE REACHED OR EXCEEDED 100 DEG.;
- 0 DAYS ON WHICH THE TEMPERATURE FAILED TO RISE ABOVE 32 DEG.
- 0 DAYS ON WHICH THE MINIMUM TEMPERATURE REACHED OR FELL BELOW 32 DEG.
- 2650 SEASON-TO-DATE HEATING DEGREE DAYS,
- PERCENTAGE OF NORMAL SEASON-TO-DATE HEATING DEGREE DAYS: 135.3,
- 1017 YEAR-TO-DATE COOLING DEGREE DAYS.
- PERCENTAGE OF NORMAL YEAR-TO-DATE COOLING DEGREE DAYS: 118.1.
- PRECIPITATION DURING THE PREVIOUS TWELVE MONTHS 60.47 IN.,
- TWELVE-MONTH PRECIPITATION PERCENTAGE 133.6.