Fairmount Hills Weather

 Latitude N 43° 02' 10"    Longitude W 76° 14' 49"    Elevation 642 ft

The Weather Station

Wednesday, 20-Sep-2017 08:37:45 EDT

Current Conditions:  Temp: 61.2 F, Wind: NW @ 2.0 mph, Hum: 100%, Feels Like: 64.7 F, Baro: 30.00 in, Rising slowly 0.01 in/hr

System Software Unix  (Ubuntu 14.04.1 Trusty LTS) running on 1 Intel(R) Celeron(R) CPU 2.40GHz
Disk Size   141 GB of 165 GB available.
Station system has been up 2 weeks, 4 days, 12 hours, 20 minutes
This website uses Cumulus (3.0.0 -b 3043) (Beta) for weather conditions reporting.
Cumulus has been running for 2 days 23 hours.

The Weather Station in use is the Ambient Weather WS-2080 (Fine Offset)

The sensor's (wind,temp,rain) are all mounted on a 25ft pole, located in a grassy lawn area of our backyard, away from concrete and blacktop. The weather station went on-line October 15, 2010, and is located in a residential area of Fairmount, New York, approx 6mi west of Syracuse.
Our local weatherman likes to predict the weather, "right down to your own backyard"
This really is Weather right down to my own Backyard.

Temp and Humidity

The temperature and humidity sensors are mounted approx 6 ft above the ground and are housed in a radiation sheild,
to minimize over-reading caused by solar radiation (sunlight), helping to maximize accurate readings.


The Wind Sensor (anemometer), for speed and direction is located at the top of the same pole approx 25 ft high


The rain gauge is 2 ft off of the ground to maximize accurate collection's.

Data Collection

Weather information is collected by the sensors and transmitted wirelessly to the indoor console every 48 secs. The data is transfered to a computer via USB cable, where a software program collects the data and creates and uploads the webpages and graphs every min to this website.
Data collection software used is Steve Lofft's Cumulus program, a very nice FREE / Donate-ware program. The software is well supported and updated, there is a very active fourm with TONS of support from other users as well as the author himself.

Weather Definitions   - Common Weather terms and their definitions.   (Thanks to Wikipedia)

National Weather Service -  Severe Weather Definitions. (Opens in new window)

Apparent Temperature
Apparent temperature is the general term for the perceived outdoor temperature, caused by the combined effects of air temperature, relative humidity and wind speed. The Heat index measures the effect of humidity on the perception of temperature. In humid conditions, the air feels hotter than it actually is, because of the reduction of perspiration. The Wind chill measures the effect of wind speed on the perception of temperature. In windy conditions, the air feels cooler than it actually is, because of increased perspiration. The Wet Bulb Globe Temperature (WBGT) combines the effects of radiation, humidity, temperature and wind speed on the perception of temperature. It is not often used as the resulting figure is very location specific (eg: cloud cover and/or wind shielding).

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or mercury. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems, and frontal boundaries.
Measurements of barometric pressure and the pressure tendency (the change of pressure over time) have been used in forecasting since the late 19th century. The larger the change in pressure, especially if more than 3.5 hPa (0.10 inHg), the larger the change in weather can be expected. If the pressure drop is rapid, a low pressure system is approaching, and there is a greater chance of rain. Rapid pressure rises are associated with improving weather conditions, such as clearing skies.

Beaufort Wind Scale
The Beaufort Scale is an empirical measure for describing wind speed based mainly on observed sea conditions (on land it is categorised by the physical effects it has on vegetation and structures). Its full name is the Beaufort Wind Force Scale.

Cloud Base
The cloud base (or the base of the cloud) is the lowest altitude of the visible portion of the cloud. It is traditionally expressed either in meters or feet above mean sea level (or planetary surface), or as the corresponding pressure level in hectopascal (hPa, equivalent to millibar). The height of the cloud base can be estimated from surface measurements of air temperature and humidity. Modern automated instruments to measure cloud base include specially designed laser systems called ceilometers.

Chill Hours
Chilling unit (hours) in agriculture is a metric of a plant's exposure to chilling temperatures. Chilling temperatures extend from freezing point to, depending on the model, 45°F (7°C) or even 60°F (16°C). Stone fruit trees and certain other plants of temperate climate develop next year's buds in the summer. In the autumn the buds go dormant, and the switch to proper, healthy dormancy is triggered by a certain minimum exposure to chilling temperatures. Lack of such exposure results in delayed and substandard foliation, flowering and fruiting. One chilling unit, in the simplest models, is equal to one hour's exposure to the chilling temperature; these units are summed up for a whole season. Advanced models assign different weights to different temperature bands.

Dew Point
The dew point is the temperature to which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to condense into water. The condensed water is called dew. The dew point is a saturation temperature. The dew point is associated with relative humidity. A high relative humidity indicates that the dew point is closer to the current air temperature. Relative humidity of 100% indicates the dew point is equal to the current temperature and the air is maximally saturated with water. When the dew point remains constant and temperature increases, relative humidity will decrease.

graupel Heavily rimed snow particles, often called snow pellets; often indistinguishable from very small soft hail except for the size convention that hail must have a diameter greater than 5 mm. Sometimes distinguished by shape into conical, hexagonal, and lump (irregular) graupel. Often occurs during the Fall and Spring.

Growing degree day
Growing degree days (GDD), also called growing degree units (GDUs) are a heuristic tool in phenology. GDD are a measure of heat accumlation used by horticulturists, gardeners, and farmers to predict plant and pest development rates such as the date a flower will bloom or a crop reach maturity.

Heat degree day
Heating degree day (HDD) is a measurement designed to reflect the demand for energy needed to heat a home or business. It is derived from measurements of outside air temperature. The heating requirements for a given structure at a specific location are considered to be directly proportional to the number of HDD at that location. A similar measurement, Cooling degree day (CDD), reflects the amount of energy used to cool a home or business.

Heating Index
The heat index (HI) is an index that combines air temperature and relative humidity in an attempt to determine the human-perceived equivalent temperature — how hot it feels, termed the felt air temperature. The human body normally cools itself by perspiration, or sweating, which evaporates and carries heat away from the body. However, when the relative humidity is high, the evaporation rate is reduced, so heat is removed from the body at a lower rate causing it to retain more heat than it would in dry air. Measurements have been taken based on subjective descriptions of how hot subjects feel for a given temperature and humidity, allowing an index to be made which relates one temperature and humidity combination to another at a higher temperature in drier air.

Humidity is a term for the amount of water vapor in the air, and can refer to any one of several measurements of humidity. Formally, humid air is not "moist air" but a mixture of air and water vapor, and humidity is defined in terms of the water content of this mixture, called the Absolute humidity. In everyday usage, it commonly refers to relative humidity, expressed as a percent in weather forecasts and on household humidistats; it is so called because it measures the current absolute humidity relative to the maximum. Specific humidity is a ratio of the water vapor content of the mixture to the dry air content (on a mass basis). The water vapor content of the mixture can be measured either as mass per volume or as a partial pressure, depending on the usage. In meteorology, humidity indicates the likelihood of precipitation, dew, or fog. High relative humidity reduces the effectiveness of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin. This effect is calculated in a heat index table, used during summer weather.

METAR is a format for reporting weather information. A METAR weather report is predominantly used by pilots in fulfillment of a part of a pre-flight weather briefing, and by meteorologists, who use aggregated METAR information to assist in weather forecasting. Raw METAR is the most popular format in the world for the transmission of weather data. It is highly standardized through International Civil Aviation Organization (ICAO), which allows it to be understood throughout most of the world.

Wet Bulb Temperature
The wet-bulb temperature is a type of temperature measurement that reflects the physical properties of a system with a mixture of a gas and a vapor, usually air and water vapor. Wet bulb temperature is the lowest temperature that can be reached by the evaporation of water only. It is the temperature one feels when one's skin is wet and is exposed to moving air. Unlike dry bulb temperature, wet bulb temperature is an indication of the amount of moisture in the air. Wet-bulb temperature can have several technical meanings.

Wind Chill
Wind chill (often popularly called the wind chill factor) is the felt air temperature on exposed skin due to wind. It measures the effect of wind on air temperature. The wind chill temperature is usually lower than the air temperature, since the air temperature is usually lower than the human body temperature. In contrast, humidity on the skin can result in a higher felt air temperature, and the heat index is used instead.

Wind Run
Wind run is a meteorological term used to categorize or determine the total distance (or amount) of the traveled wind over a period of time. The readings are collected using an anemometer (usually part of a weather station). Wind run is measurement of the "amount" of wind passing the station during a given period of time, expressed in either "miles of wind" or "kilometers of wind".

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