Vs > Portland, Maine
 | Jamestown vs Portland, Maine Climate & Distance Between |  |
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- The distance between Jamestown, Saint Helena and Portland, Maine, Usa is approximately 9,311 km or 5,786 mi.
- To reach Jamestown in this distance one would set out from Portland, Maine bearing 119.1° or ESE
 and follow the great circles arc to approach Jamestown bearing 138.9° or SE .
- Jamestown has a subtropical hot desert climate (BWh) whereas Portland, Maine has a warm summer continental/ hemiboreal climate with no dry season (Dfb).
- The mean annual temperature is 14.4 °C (26°F) warmer.
- Average monthly temperatures vary by 22.5 °C (40.5°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to subcontinental.
- Total annual precipitation averages 989.3 mm (38.9 in) less which is equivalent to 989.3 l/m² (24.28 US gal/ft²) or 9,893,000 l/ha (1,057,627 US gal/ac) less. About 1/8 as much.
- The altitude of the sun at midday is overall 24.1° higher in Jamestown than in Portland, Maine.
- Relative humidity levels are 8.8% higher.
- The mean dew point temperature is 15.4°C (27.7°F) higher.
Climate Comparison Table
The table shows values for Jamestown relative to Portland, Maine. You can also view this comparison the other way around from the perspective of Portland, Maine vs Jamestown.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
+28 (+50) |
+26 (+48) |
+23 (+41) |
+16 (+28) |
+7 (+12) |
+0 (+1) |
-4 (-7) |
+-3 (-6) |
+1 (+2) |
+8 (+15) |
+15 (+26) |
+22 (+40) |
|
+12 (+21) |
 | Average Temperature °C ( °F) |
+30 (+54) |
+29 (+52) |
+23 (+42) |
+18 (+32) |
+10 (+18) |
+4 (+7) |
0 (-1) |
+0 (+1) |
+5 (+9) |
+11 (+19) |
+17 (+31) |
+25 (+45) |
|
+14 (+26) |
 | Average Min Temperature °C ( °F) |
+32 (+58) |
+31 (+56) |
+26 (+47) |
+20 (+36) |
+13 (+23) |
+7 (+12) |
+2 (+4) |
+3 (+6) |
+8 (+14) |
+15 (+26) |
+19 (+34) |
+27 (+48) |
|
+17 (+30) |
 | Average Precipitation mm (in) |
-82 (-3) |
-75 (-3) |
-73 (-3) |
-94 (-4) |
-74 (-3) |
-69 (-3) |
-46 (-2) |
-63 (-2) |
-74 (-3) |
-97 (-4) |
-131 (-5) |
-113 (-4) |
|
-989 (-39) |
 | Number of Precipitation Days (% chance of precip. on a day ) |
-8 ( -26) |
-7 ( -25) |
-7 ( -23) |
-9 ( -30) |
-9 ( -29) |
-6 ( -20) |
-2 ( -6) |
-7 ( -23) |
-8 ( -27) |
-8 ( -26) |
-11 ( -37) |
-10 ( -32) |
|
-92 ( -25) |
 | Average Daylight Hours & Minutes/ Day |
+3h 41' |
+2h 16' |
+0h 25' |
-1h 34' |
-3h 15' |
-4h 07' |
-3h 44' |
-2h 17' |
-0h 21' |
+1h 37' |
+3h 18' |
+4h 07' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
+58.7 |
+47.7 |
+27 |
+3.8 |
-12.7 |
-19.1 |
-13.1 |
+3.7 |
+26.5 |
+48.2 |
+58.4 |
+59.5 |
| +24.1 |
 | Relative Humidity (%) |
-1 |
+4 |
+4 |
+7 |
+14 |
+11 |
+14 |
+16 |
+14 |
+12 |
+8 |
+3 |
|
+8.8 |
 | Average Dew Point Temperature °C & (°F) |
+27.8 (+50) |
+27.5 (+50) |
+22.4 (+40) |
+18.2 (+33) |
+12.9 (+23) |
+6.5 (+12) |
+2.9 (+5) |
+4 (+7) |
+7.8 (+14) |
+13 (+23) |
+18 (+32) |
+23.8 (+43) |
|
+15.4 (+28) |
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Jamestown vs Portland, Maine Discussion
You are welcome to incorporate your thoughts on the differences in climate or other matters such as contrasts in culture, standard of living, demographics etc.
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Currently under general maintenance. |
Climate Guides for Locations near Jamestown
Climate Guides for Locations near Portland, Maine
- Saint Johnsbury, Vt, Usa - 160.4 kms (99.7 miles) WNW
- Mount Washington, Nh, Usa - 104.4 kms (64.9 miles) NW
- Bethlehem, Nh, Usa - 140.5 kms (87.3 miles) WNW
- Hanover, Nh, Usa - 140.5 kms (87.3 miles) WNW
- Chelsea, Vt, Usa - 175.1 kms (108.8 miles) WNW
- Durham, Nh, Usa - 91 kms (56.5 miles) SW
- Keene, Nh, Usa - 154.2 kms (95.8 miles) WSW
- Lawrence, Ma, Usa - 91 kms (56.5 miles) SW
- Boston, Massachusetts, Usa - 154.1 kms (95.8 miles) SSW
- Framingham, Ma, Usa - 175.9 kms (109.3 miles) SSW
- Milton/ Blue Hill, Ma, Usa - 172.2 kms (107 miles) SSW
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