Almanac for November 21, 2009
Temperature & precipitation
Key: T = Trace of precipitation; MM = data not available
| Actual | Normal | Record | Last year | |
|---|---|---|---|---|
| Today | ||||
| High temperature | -- | 52° | 65° (1991) | 54° |
| Low temperature | -- | 35° | 18° (1987) | 35° |
| Yesterday | ||||
| High temperature | 62° | 52° | 66° (1985) | 39° |
| Low temperature | 42° | 35° | 21° (1986) | 23° |
| Precipitation | 0.75 " | 0.13 " | 2.63 " ( 1988 ) | 0.00 " |
| Month-to-date precip. | 2.01 " | 2.56 " | -- | 1.54 " |
| Year-to-date precip. | 42.96 " | 41.09 " | -- | 43.86 " |
Degree Days
| Yesterday | Normal | |
|---|---|---|
| Heating Degree Days | 13 | 21 |
| Month to date heating degree days | 295 | 372 |
| Since 1 July heating degree days | 724 | 761 |
| Cooling Degree Days | 0 | 0 |
| Month to date cooling degree days | 0 | 0 |
| Year to date cooling degree days | 657 | 770 |
Sun & moon
| Sunrise | 6:46 AM | Moonrise | 10:53 AM | |
| Sunset | 4:30 PM | Moonset | 8:41 PM |
Upcoming moon phases:
 First Qtr November 24, 2009 |
 Full December 2, 2009 |
 Last Qtr December 8, 2009 |
 New December 16, 2009 |
Air pollution
EPA forecast for: Riverhead
| Sat | Air Quality: Good | Pollutant: PM2.5 |
| Sun | Air Quality: Good | Pollutant: PM2.5 |
| Mon | Air Quality: Good | Pollutant: PM2.5 |
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