| WS Form F-6 (1-79)
U.S. Department Of Commerce National Oceanic and Atmospheric Administration National Weather Service Preliminary Local Climatological Data *Data Subject to Correction by the National Climatic Data Center |
Station: Portland , Maine
Month: May Year: 1999 Latitude: 43° 39'N Longitude: 70° 19'W Station Elevation: 43 FT Standard Time: EASTERN |
| Temperature | DegDays | Precipitation | Wind | Sunshine | Wx | PkWind | |||||||||||
| Date | Max | Min | Mn | Dep | Htg | Clg | Total | Snow | Depth | Avg | Fast | Dir | Mins | %Pos | Occur | Spd | Dir |
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| #Means Last of Multiple Occurrences | Misc:
|
Fast 30 | Dir
310 |
Poss
27402 |
Prct
60 |
Fast
34 |
Dir
320 |
||||||||||
| Temperature Data
AVERAGE MONTHLY: 54.5 º DEPARTURE FROM NORMAL: +1.2 º HIGHEST: 85 º ON 31st LOWEST: 33º ON 13,14 th Number of Days With-
Heating Degree Days
Cooling Degree Day
|
Precipitation Data
TOTAL FOR THE MONTH: 4.98" DEPARTURE FROM NORMAL: +1.36 " GREATEST IN 24 HOURS: 2.09" ON 4, 5th Snowfall, Ice Pellets
Weather
Pressure Data
|
| Symbols used in Weather
Occurrences
1 = Fog 2 = Fog Reducing Visibility to 1/4 Mile or Less 3 = Thunder 4 = Ice Pellets 5 = Hail 6 = Glaze or Rime 7 = Blowing Dust Or Blowing Sand Reducing Visibility to 1/4 mile or less 8 = Smoke or Haze 9 = Blowing Snow X = Tornado |
| Remarks: Sunshine measured at the NWS office in Gray |