Using NEWA to access historical data

Did you know NEWA can load past weather data into your favorite online tool at newa.cornell.edu? It’s the dead of winter which is a perfect time to look back at the 2017 growing season. Read this article to learn more about historical data access using NEWA.

Historical data access | Historical data from inactive stations | Historical data summary

NEWA historical data access

The NEWA website is popular because real-time weather data provide short-term risk assessments during the growing season. But, have you ever looked back and asked yourself what went right or wrong? NEWA tools can also be used to follow insect or disease risk historically through a period of time. You can access this feature using any model or tool available on the NEWA website.

Instructions

From the ‘Weather Data,’ ‘Pest Forecasts,’ or ‘Crop Management’ dropdown lists in the website navigation bar, select your model of interest.

Select your pest or disease, State, and Weather station and historical Accumulation end date.

View the historical output.

NEWA historical data access from ‘Inactive’ Stations

Every once in a while, we get a question about historical data from an ‘inactive’ station, which is a NEWA location that no longer transmits to the website. Historical weather data can still be accessed using the hourly or daily weather summary tools.

Instructions

From the ‘Weather Data’ dropdown list in the website navigation bar, select Hourly Data or Daily Summary.

Scroll to the bottom of available weather stations and find a station of interest.

Choose a month and year from the past.

Get your report.

Historical data access summary

This table summarizes the availability of NEWA models and tools with ‘active’ and ‘inactive’ stations on NEWA. Follow the links to view tools and resources at the NEWA website.

Category	Crop	Model type	Model	From active stations	From inactive stations
Fruit	Apple	Diseases	Apple scab	YES	NO
			Fire Blight	YES	NO
		Insects	Apple Maggot	YES	NO
			Codling Moth	YES	NO
			Oriental Fruit Moth	YES	NO
			Obliquebanded Leafroller	YES	NO
			Plum Curculio	YES	NO
			San Jose Scale	YES	NO
			Spotted Tentiform Leafminer	YES	NO
		Crop Management	carbohydrate thinning model	YES	NO
			Irrigation model	YES	NO
	Grape	Diseases	Phomopsis	YES	NO
			Powdery Mildew	YES	NO
			Black Rot	YES	NO
			Downy Mildew	YES	NO
		Insects	Grape Berry Moth	YES	NO
Vegetable	Cabbage	Insects	Cabbage Maggot	YES	NO
	Onion	Diseases	Botrytis	YES	NO
			Downy Mildew	YES	NO
			Purple Blotch	YES	NO
		Insects	Onion Maggot	YES	NO
	Potato	Diseases	Early Blight	YES	NO
			Late Blight	YES	NO
	Tomato	Diseases	Early Blight, Septoria, Anthracnose	YES	NO
			Late Blight	YES	NO
Weather		Summaries	Hourly	YES	YES
			Daily	YES	YES
Degree Days		Summaries	Monthly	YES	NO
		Calculator		YES	NO